122479077928 has 16 divisors (see below), whose sum is σ = 229660642260. Its totient is φ = 61236240000.

The previous prime is 122479077887. The next prime is 122479077991. The reversal of 122479077928 is 829770974221.

It can be written as a sum of positive squares in 2 ways, for example, as 122204778084 + 274299844 = 349578^2 + 16562^2 .

It is a super-2 number, since 2×122479077928² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250863 + ... + 554878.

Almost surely, 2^122479077928 is an apocalyptic number.

It is an amenable number.

122479077928 is a deficient number, since it is larger than the sum of its proper divisors (107181564332).

122479077928 is a wasteful number, since it uses less digits than its factorization.

122479077928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824748 (or 824744 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 58.

The spelling of 122479077928 in words is "one hundred twenty-two billion, four hundred seventy-nine million, seventy-seven thousand, nine hundred twenty-eight".