172707319028 has 24 divisors (see below), whose sum is σ = 303101477952. Its totient is φ = 86107230144.

The previous prime is 172707319013. The next prime is 172707319067. The reversal of 172707319028 is 820913707271.

It is a congruent number.

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, 2069201 + ... + 2151047.

It is an arithmetic number, because the mean of its divisors is an integer number (12629228248).

Almost surely, 2^172707319028 is an apocalyptic number.

It is an amenable number.

172707319028 is a deficient number, since it is larger than the sum of its proper divisors (130394158924).

172707319028 is a wasteful number, since it uses less digits than its factorization.

172707319028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83351 (or 83349 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 47.

The spelling of 172707319028 in words is "one hundred seventy-two billion, seven hundred seven million, three hundred nineteen thousand, twenty-eight".