172871057610 has 48 divisors (see below), whose sum is σ = 453003872256. Its totient is φ = 45735961824.

The previous prime is 172871057609. The next prime is 172871057617. The reversal of 172871057610 is 16750178271.

172871057610 is a `hidden beast` number, since 1 + 7 + 2 + 8 + 71 + 0 + 576 + 1 + 0 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (172871057617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7550734 + ... + 7573593.

It is an arithmetic number, because the mean of its divisors is an integer number (9437580672).

Almost surely, 2^172871057610 is an apocalyptic number.

172871057610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172871057610 is an abundant number, since it is smaller than the sum of its proper divisors (280132814646).

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

172871057610 is a wasteful number, since it uses less digits than its factorization.

172871057610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15124467 (or 15124464 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 45.

The spelling of 172871057610 in words is "one hundred seventy-two billion, eight hundred seventy-one million, fifty-seven thousand, six hundred ten".