123907657690606 has 32 divisors (see below), whose sum is σ = 192051197116416. Its totient is φ = 59894652360000.

The previous prime is 123907657690519. The next prime is 123907657690627. The reversal of 123907657690606 is 606096756709321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 513186171 + ... + 513427561.

It is an arithmetic number, because the mean of its divisors is an integer number (6001599909888).

Almost surely, 2^{123907657690606} is an apocalyptic number.

123907657690606 is a deficient number, since it is larger than the sum of its proper divisors (68143539425810).

123907657690606 is a wasteful number, since it uses less digits than its factorization.

123907657690606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249768.

The product of its (nonzero) digits is 154314720, while the sum is 67.

The spelling of 123907657690606 in words is "one hundred twenty-three trillion, nine hundred seven billion, six hundred fifty-seven million, six hundred ninety thousand, six hundred six".