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53719660680 = 233571731121351
BaseRepresentation
bin110010000001111100…
…001111100010001000
312010122211000111211020
4302001330033202020
51340004213120210
640402314432440
73611136403350
oct620174174210
9163584014736
1053719660680
1120867391194
12a4b2732720
1350b158848a
14285874bb60
1515e61e1770
hexc81f0f888

53719660680 has 256 divisors, whose sum is σ = 201308405760. Its totient is φ = 11183616000.

The previous prime is 53719660679. The next prime is 53719660739. The reversal of 53719660680 is 8606691735.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 382005 + ... + 503355.

It is an arithmetic number, because the mean of its divisors is an integer number (786360960).

Almost surely, 253719660680 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 53719660680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100654202880).

53719660680 is an abundant number, since it is smaller than the sum of its proper divisors (147588745080).

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

53719660680 is a wasteful number, since it uses less digits than its factorization.

53719660680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121420 (or 121416 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 53719660680 in words is "fifty-three billion, seven hundred nineteen million, six hundred sixty thousand, six hundred eighty".