79137537122 has 54 divisors (see below), whose sum is σ = 139744107171. Its totient is φ = 33513873120.

The previous prime is 79137537113. The next prime is 79137537137. The reversal of 79137537122 is 22173573197.

It can be written as a sum of positive squares in 5 ways, for example, as 921668881 + 78215868241 = 30359^2 + 279671^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=198919.

It is a super-4 number, since 4×79137537122⁴ (a number of 45 digits) contains 4444 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 437223872 + ... + 437224052.

Almost surely, 2^79137537122 is an apocalyptic number.

79137537122 is a deficient number, since it is larger than the sum of its proper divisors (60606570049).

79137537122 is an equidigital number, since it uses as much as digits as its factorization.

79137537122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 347 counting only the distinct ones).

The product of its digits is 555660, while the sum is 47.

The spelling of 79137537122 in words is "seventy-nine billion, one hundred thirty-seven million, five hundred thirty-seven thousand, one hundred twenty-two".