51179199267 has 64 divisors (see below), whose sum is σ = 79923544064. Its totient is φ = 28531077120.

The previous prime is 51179199263. The next prime is 51179199289. The reversal of 51179199267 is 76299197115.

It is a happy number.

51179199267 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51179199267 - 2² = 51179199263 is a prime.

It is a super-2 number, since 2×51179199267² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51179199263) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 46823973 + ... + 46825065.

It is an arithmetic number, because the mean of its divisors is an integer number (1248805376).

Almost surely, 2^51179199267 is an apocalyptic number.

51179199267 is a deficient number, since it is larger than the sum of its proper divisors (28744344797).

51179199267 is a wasteful number, since it uses less digits than its factorization.

51179199267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508.

The product of its digits is 2143260, while the sum is 57.

The spelling of 51179199267 in words is "fifty-one billion, one hundred seventy-nine million, one hundred ninety-nine thousand, two hundred sixty-seven".