122639902074 has 48 divisors (see below), whose sum is σ = 266521941504. Its totient is φ = 40756716000.

The previous prime is 122639902067. The next prime is 122639902097. The reversal of 122639902074 is 470209936221.

122639902074 is a `hidden beast` number, since 1 + 2 + 2 + 639 + 9 + 0 + 2 + 0 + 7 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10836879 + ... + 10848189.

It is an arithmetic number, because the mean of its divisors is an integer number (5552540448).

Almost surely, 2^122639902074 is an apocalyptic number.

122639902074 is an abundant number, since it is smaller than the sum of its proper divisors (143882039430).

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

122639902074 is a wasteful number, since it uses less digits than its factorization.

122639902074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13083 (or 13080 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 122639902074 in words is "one hundred twenty-two billion, six hundred thirty-nine million, nine hundred two thousand, seventy-four".