123426934464 has 56 divisors (see below), whose sum is σ = 329619181248. Its totient is φ = 40757797120.

The previous prime is 123426934451. The next prime is 123426934469. The reversal of 123426934464 is 464439624321.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (123426934469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2983422 + ... + 3024509.

It is an arithmetic number, because the mean of its divisors is an integer number (5886056808).

Almost surely, 2^123426934464 is an apocalyptic number.

It is an amenable number.

123426934464 is an abundant number, since it is smaller than the sum of its proper divisors (206192246784).

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

123426934464 is a wasteful number, since it uses less digits than its factorization.

123426934464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6008053 (or 6008043 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 48.

The spelling of 123426934464 in words is "one hundred twenty-three billion, four hundred twenty-six million, nine hundred thirty-four thousand, four hundred sixty-four".