51109340008 has 8 divisors (see below), whose sum is σ = 95830012530. Its totient is φ = 25554670000.

The previous prime is 51109339961. The next prime is 51109340021. The reversal of 51109340008 is 80004390115.

It can be written as a sum of positive squares in only one way, i.e., 50876411364 + 232928644 = 225558^2 + 15262^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×51109340008² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3194333743 + ... + 3194333758.

Almost surely, 2^51109340008 is an apocalyptic number.

It is an amenable number.

51109340008 is a deficient number, since it is larger than the sum of its proper divisors (44720672522).

51109340008 is a wasteful number, since it uses less digits than its factorization.

51109340008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6388667507 (or 6388667503 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 51109340008 in words is "fifty-one billion, one hundred nine million, three hundred forty thousand, eight".