123454406052272 has 20 divisors (see below), whose sum is σ = 243247028876040. Its totient is φ = 60680979245568.

The previous prime is 123454406052253. The next prime is 123454406052277. The reversal of 123454406052272 is 272250604454321.

It is not an unprimeable number, because it can be changed into a prime (123454406052277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65388985313 + ... + 65388987200.

It is an arithmetic number, because the mean of its divisors is an integer number (12162351443802).

Almost surely, 2^{123454406052272} is an apocalyptic number.

It is an amenable number.

123454406052272 is a deficient number, since it is larger than the sum of its proper divisors (119792622823768).

123454406052272 is a wasteful number, since it uses less digits than its factorization.

123454406052272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130777972580 (or 130777972574 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 47.

The spelling of 123454406052272 in words is "one hundred twenty-three trillion, four hundred fifty-four billion, four hundred six million, fifty-two thousand, two hundred seventy-two".