123297402643632 has 240 divisors, whose sum is σ = 397245264818688. Its totient is φ = 34970643164160.

The previous prime is 123297402643627. The next prime is 123297402643643. The reversal of 123297402643632 is 236346204792321.

123297402643632 is a `hidden beast` number, since 1 + 2 + 32 + 97 + 40 + 26 + 436 + 32 = 666.

It is a super-2 number, since 2×123297402643632² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76946973 + ... + 78532995.

Almost surely, 2^{123297402643632} is an apocalyptic number.

123297402643632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123297402643632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198622632409344).

123297402643632 is an abundant number, since it is smaller than the sum of its proper divisors (273947862175056).

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

123297402643632 is a wasteful number, since it uses less digits than its factorization.

123297402643632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586608 (or 1586599 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 54.

The spelling of 123297402643632 in words is "one hundred twenty-three trillion, two hundred ninety-seven billion, four hundred two million, six hundred forty-three thousand, six hundred thirty-two".