123137756628 has 48 divisors (see below), whose sum is σ = 292169424960. Its totient is φ = 40353984000.

The previous prime is 123137756603. The next prime is 123137756629. The reversal of 123137756628 is 826657731321.

123137756628 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123137756629) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1556428 + ... + 1633628.

It is an arithmetic number, because the mean of its divisors is an integer number (6086863020).

Almost surely, 2^123137756628 is an apocalyptic number.

It is an amenable number.

123137756628 is an abundant number, since it is smaller than the sum of its proper divisors (169031668332).

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

123137756628 is a wasteful number, since it uses less digits than its factorization.

123137756628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79448 (or 79446 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 51.

The spelling of 123137756628 in words is "one hundred twenty-three billion, one hundred thirty-seven million, seven hundred fifty-six thousand, six hundred twenty-eight".