64980401904 has 100 divisors (see below), whose sum is σ = 205169647320. Its totient is φ = 19691026560.

The previous prime is 64980401887. The next prime is 64980401933. The reversal of 64980401904 is 40910408946.

It is a self number, because there is not a number n which added to its sum of digits gives 64980401904.

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 19 ways as a sum of consecutive naturals, for example, 2264799 + ... + 2293310.

Almost surely, 2^64980401904 is an apocalyptic number.

It is an amenable number.

64980401904 is an abundant number, since it is smaller than the sum of its proper divisors (140189245416).

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

64980401904 is a wasteful number, since it uses less digits than its factorization.

64980401904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4558140 (or 4558125 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 64980401904 in words is "sixty-four billion, nine hundred eighty million, four hundred one thousand, nine hundred four".