123997916986207 has 16 divisors (see below), whose sum is σ = 143139832266240. Its totient is φ = 106305623855200.

The previous prime is 123997916986091. The next prime is 123997916986261. The reversal of 123997916986207 is 702689619799321.

It is not a de Polignac number, because 123997916986207 - 2³⁵ = 123963557247839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123997916986277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3451463332 + ... + 3451499257.

It is an arithmetic number, because the mean of its divisors is an integer number (8946239516640).

Almost surely, 2^{123997916986207} is an apocalyptic number.

123997916986207 is a deficient number, since it is larger than the sum of its proper divisors (19141915280033).

123997916986207 is a wasteful number, since it uses less digits than its factorization.

123997916986207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6902962694.

The product of its (nonzero) digits is 1111065984, while the sum is 79.

The spelling of 123997916986207 in words is "one hundred twenty-three trillion, nine hundred ninety-seven billion, nine hundred sixteen million, nine hundred eighty-six thousand, two hundred seven".