123458315478344 has 128 divisors (see below), whose sum is σ = 297782970347520. Its totient is φ = 46591891200000.

The previous prime is 123458315478331. The next prime is 123458315478367. The reversal of 123458315478344 is 443874513854321.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19172282 + ... + 24788969.

It is an arithmetic number, because the mean of its divisors is an integer number (2326429455840).

Almost surely, 2^{123458315478344} is an apocalyptic number.

123458315478344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

123458315478344 is an abundant number, since it is smaller than the sum of its proper divisors (174324654869176).

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

123458315478344 is a wasteful number, since it uses less digits than its factorization.

123458315478344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43961419 (or 43961415 counting only the distinct ones).

The product of its digits is 154828800, while the sum is 62.

The spelling of 123458315478344 in words is "one hundred twenty-three trillion, four hundred fifty-eight billion, three hundred fifteen million, four hundred seventy-eight thousand, three hundred forty-four".