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53497862297880 = 23357211133171137211
BaseRepresentation
bin11000010100111111100010…
…00101000001100100011000
321000102100100000011201210220
430022133301011001210120
524003002110222013010
6305440324553440040
714161043620403100
oct1412376105014430
9230370300151726
1053497862297880
1116056352642aa0
1260002b1a10020
1323b0a99542140
14d2d44b862200
1562b9074c3970
hex30a7f1141918

53497862297880 has 3072 divisors, whose sum is σ = 232372141424640. Its totient is φ = 9672929280000.

The previous prime is 53497862297879. The next prime is 53497862297903. The reversal of 53497862297880 is 8879226879435.

It is a Harshad number since it is a multiple of its sum of digits (78).

It is a junction number, because it is equal to n+sod(n) for n = 53497862297796 and 53497862297805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 767 ways as a sum of consecutive naturals, for example, 253544370975 + ... + 253544371185.

It is an arithmetic number, because the mean of its divisors is an integer number (75641973120).

Almost surely, 253497862297880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53497862297880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116186070712320).

53497862297880 is an abundant number, since it is smaller than the sum of its proper divisors (178874279126760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53497862297880 is a wasteful number, since it uses less digits than its factorization.

53497862297880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 2926264320, while the sum is 78.

The spelling of 53497862297880 in words is "fifty-three trillion, four hundred ninety-seven billion, eight hundred sixty-two million, two hundred ninety-seven thousand, eight hundred eighty".