122638685364 has 72 divisors (see below), whose sum is σ = 346214596000. Its totient is φ = 37734976224.

The previous prime is 122638685363. The next prime is 122638685387. The reversal of 122638685364 is 463586836221.

122638685364 is a `hidden beast` number, since 1 + 2 + 26 + 3 + 86 + 8 + 536 + 4 = 666.

It is a super-3 number, since 3×122638685364³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 122638685364.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122638685363) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4840114 + ... + 4865385.

Almost surely, 2^122638685364 is an apocalyptic number.

It is an amenable number.

122638685364 is an abundant number, since it is smaller than the sum of its proper divisors (223575910636).

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

122638685364 is a wasteful number, since it uses less digits than its factorization.

122638685364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9705531 (or 9705517 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 54.

The spelling of 122638685364 in words is "one hundred twenty-two billion, six hundred thirty-eight million, six hundred eighty-five thousand, three hundred sixty-four".