53980280640 has 336 divisors, whose sum is σ = 218131070976. Its totient is φ = 12079411200.

The previous prime is 53980280597. The next prime is 53980280663. The reversal of 53980280640 is 4608208935.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 346305 + ... + 477375.

It is an arithmetic number, because the mean of its divisors is an integer number (649199616).

Almost surely, 2^53980280640 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 53980280640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109065535488).

53980280640 is an abundant number, since it is smaller than the sum of its proper divisors (164150790336).

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

53980280640 is a wasteful number, since it uses less digits than its factorization.

53980280640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131118 (or 131105 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 53980280640 in words is "fifty-three billion, nine hundred eighty million, two hundred eighty thousand, six hundred forty".