123572194292256 has 48 divisors (see below), whose sum is σ = 328945700317248. Its totient is φ = 40610580281600.

The previous prime is 123572194292243. The next prime is 123572194292321. The reversal of 123572194292256 is 652292491275321.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 123572194292256.

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, 9064854855 + ... + 9064868486.

It is an arithmetic number, because the mean of its divisors is an integer number (6853035423276).

Almost surely, 2^{123572194292256} is an apocalyptic number.

123572194292256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123572194292256 is an abundant number, since it is smaller than the sum of its proper divisors (205373506024992).

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

123572194292256 is a wasteful number, since it uses less digits than its factorization.

123572194292256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18129723425 (or 18129723417 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 60.

The spelling of 123572194292256 in words is "one hundred twenty-three trillion, five hundred seventy-two billion, one hundred ninety-four million, two hundred ninety-two thousand, two hundred fifty-six".