123643436072375 has 32 divisors (see below), whose sum is σ = 163386816847488. Its totient is φ = 93094567104000.

The previous prime is 123643436072353. The next prime is 123643436072383. The reversal of 123643436072375 is 573270634346321.

It is not a de Polignac number, because 123643436072375 - 2³⁶ = 123574716595639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123643436072375.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125323505 + ... + 126306245.

It is an arithmetic number, because the mean of its divisors is an integer number (5105838026484).

Almost surely, 2^{123643436072375} is an apocalyptic number.

123643436072375 is a deficient number, since it is larger than the sum of its proper divisors (39743380775113).

123643436072375 is an equidigital number, since it uses as much as digits as its factorization.

123643436072375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041980 (or 1041970 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 56.

The spelling of 123643436072375 in words is "one hundred twenty-three trillion, six hundred forty-three billion, four hundred thirty-six million, seventy-two thousand, three hundred seventy-five".