172390296012 has 24 divisors (see below), whose sum is σ = 438811662912. Its totient is φ = 52239483600.

The previous prime is 172390295989. The next prime is 172390296037. The reversal of 172390296012 is 210692093271.

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, 652993414 + ... + 652993677.

It is an arithmetic number, because the mean of its divisors is an integer number (18283819288).

Almost surely, 2^172390296012 is an apocalyptic number.

172390296012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

172390296012 is an abundant number, since it is smaller than the sum of its proper divisors (266421366900).

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

172390296012 is a wasteful number, since it uses less digits than its factorization.

172390296012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305987109 (or 1305987107 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 172390296012 in words is "one hundred seventy-two billion, three hundred ninety million, two hundred ninety-six thousand, twelve".