51179199268 has 12 divisors (see below), whose sum is σ = 89566961932. Its totient is φ = 25588638720.

The previous prime is 51179199263. The next prime is 51179199289. The reversal of 51179199268 is 86299197115.

It can be written as a sum of positive squares in 2 ways, for example, as 2445104704 + 48734094564 = 49448^2 + 220758^2 .

It is not an unprimeable number, because it can be changed into a prime (51179199263) 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, 112893 + ... + 339268.

Almost surely, 2^51179199268 is an apocalyptic number.

It is an amenable number.

51179199268 is a deficient number, since it is larger than the sum of its proper divisors (38387762664).

51179199268 is a wasteful number, since it uses less digits than its factorization.

51179199268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480462 (or 480460 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 58.

The spelling of 51179199268 in words is "fifty-one billion, one hundred seventy-nine million, one hundred ninety-nine thousand, two hundred sixty-eight".