75297864405632 has 128 divisors (see below), whose sum is σ = 165497529844800. Its totient is φ = 33838808227840.

The previous prime is 75297864405607. The next prime is 75297864405661. The reversal of 75297864405632 is 23650446879257.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2172015563 + ... + 2172050229.

Almost surely, 2^{75297864405632} 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 75297864405632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82748764922400).

75297864405632 is an abundant number, since it is smaller than the sum of its proper divisors (90199665439168).

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

75297864405632 is a wasteful number, since it uses less digits than its factorization.

75297864405632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52114 (or 52102 counting only the distinct ones).

The product of its (nonzero) digits is 609638400, while the sum is 68.

The spelling of 75297864405632 in words is "seventy-five trillion, two hundred ninety-seven billion, eight hundred sixty-four million, four hundred five thousand, six hundred thirty-two".