64488989376 has 168 divisors, whose sum is σ = 220538741040. Its totient is φ = 18425401344.

The previous prime is 64488989353. The next prime is 64488989387. The reversal of 64488989376 is 67398988446.

64488989376 is a `hidden beast` number, since 6 + 448 + 8 + 98 + 93 + 7 + 6 = 666.

64488989376 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 296145 + ... + 465488.

Almost surely, 2^64488989376 is an apocalyptic number.

It is an amenable number.

64488989376 is an abundant number, since it is smaller than the sum of its proper divisors (156049751664).

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

64488989376 is a wasteful number, since it uses less digits than its factorization.

64488989376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761668 (or 761645 counting only the distinct ones).

The product of its digits is 501645312, while the sum is 72.

The spelling of 64488989376 in words is "sixty-four billion, four hundred eighty-eight million, nine hundred eighty-nine thousand, three hundred seventy-six".