123172304656674 has 256 divisors, whose sum is σ = 312738714021888. Its totient is φ = 31474777485312.

The previous prime is 123172304656649. The next prime is 123172304656693. The reversal of 123172304656674 is 476656403271321.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4609211077 + ... + 4609237799.

It is an arithmetic number, because the mean of its divisors is an integer number (1221635601648).

Almost surely, 2^{123172304656674} is an apocalyptic number.

123172304656674 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123172304656674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156369357010944).

123172304656674 is an abundant number, since it is smaller than the sum of its proper divisors (189566409365214).

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

123172304656674 is a wasteful number, since it uses less digits than its factorization.

123172304656674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28361.

The product of its (nonzero) digits is 30481920, while the sum is 57.

The spelling of 123172304656674 in words is "one hundred twenty-three trillion, one hundred seventy-two billion, three hundred four million, six hundred fifty-six thousand, six hundred seventy-four".