72625552128 has 72 divisors (see below), whose sum is σ = 214766554800. Its totient is φ = 24208515072.

The previous prime is 72625552127. The next prime is 72625552133. The reversal of 72625552128 is 82125552627.

72625552128 is a `hidden beast` number, since 7 + 2 + 625 + 5 + 5 + 2 + 12 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (72625552127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5246673 + ... + 5260496.

Almost surely, 2^72625552128 is an apocalyptic number.

It is an amenable number.

72625552128 is an abundant number, since it is smaller than the sum of its proper divisors (142141002672).

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

72625552128 is a wasteful number, since it uses less digits than its factorization.

72625552128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10507194 (or 10507174 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The spelling of 72625552128 in words is "seventy-two billion, six hundred twenty-five million, five hundred fifty-two thousand, one hundred twenty-eight".