172857428616 has 32 divisors (see below), whose sum is σ = 432519091200. Its totient is φ = 57569073600.

The previous prime is 172857428603. The next prime is 172857428677. The reversal of 172857428616 is 616824758271.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3101131 + ... + 3156378.

It is an arithmetic number, because the mean of its divisors is an integer number (13516221600).

Almost surely, 2^172857428616 is an apocalyptic number.

It is an amenable number.

172857428616 is an abundant number, since it is smaller than the sum of its proper divisors (259661662584).

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

172857428616 is a wasteful number, since it uses less digits than its factorization.

172857428616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6258669 (or 6258665 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 57.

The spelling of 172857428616 in words is "one hundred seventy-two billion, eight hundred fifty-seven million, four hundred twenty-eight thousand, six hundred sixteen".