172136373124 has 24 divisors (see below), whose sum is σ = 308269130400. Its totient is φ = 84059802624.

The previous prime is 172136373121. The next prime is 172136373137. The reversal of 172136373124 is 421373631271.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (172136373121) 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, 2587227 + ... + 2652925.

It is an arithmetic number, because the mean of its divisors is an integer number (12844547100).

Almost surely, 2^172136373124 is an apocalyptic number.

It is an amenable number.

172136373124 is a deficient number, since it is larger than the sum of its proper divisors (136132757276).

172136373124 is a wasteful number, since it uses less digits than its factorization.

172136373124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80979 (or 80977 counting only the distinct ones).

The product of its digits is 127008, while the sum is 40.

The spelling of 172136373124 in words is "one hundred seventy-two billion, one hundred thirty-six million, three hundred seventy-three thousand, one hundred twenty-four".