122879427464 has 16 divisors (see below), whose sum is σ = 230543220300. Its totient is φ = 61401235392.

The previous prime is 122879427443. The next prime is 122879427467. The reversal of 122879427464 is 464724978221.

It can be written as a sum of positive squares in 2 ways, for example, as 103904364964 + 18975062500 = 322342^2 + 137750^2 .

It is not an unprimeable number, because it can be changed into a prime (122879427467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4796219 + ... + 4821770.

Almost surely, 2^122879427464 is an apocalyptic number.

It is an amenable number.

122879427464 is a deficient number, since it is larger than the sum of its proper divisors (107663792836).

122879427464 is a wasteful number, since it uses less digits than its factorization.

122879427464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9619592 (or 9619588 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 56.

The spelling of 122879427464 in words is "one hundred twenty-two billion, eight hundred seventy-nine million, four hundred twenty-seven thousand, four hundred sixty-four".