172426782764 has 24 divisors (see below), whose sum is σ = 304512793200. Its totient is φ = 85426557440.

The previous prime is 172426782733. The next prime is 172426782797. The reversal of 172426782764 is 467287624271.

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, 227309 + ... + 629700.

It is an arithmetic number, because the mean of its divisors is an integer number (12688033050).

Almost surely, 2^172426782764 is an apocalyptic number.

It is an amenable number.

172426782764 is a deficient number, since it is larger than the sum of its proper divisors (132086010436).

172426782764 is a wasteful number, since it uses less digits than its factorization.

172426782764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857473 (or 857471 counting only the distinct ones).

The product of its digits is 12644352, while the sum is 56.

The spelling of 172426782764 in words is "one hundred seventy-two billion, four hundred twenty-six million, seven hundred eighty-two thousand, seven hundred sixty-four".