51000111076 has 24 divisors (see below), whose sum is σ = 89766363960. Its totient is φ = 25353000192.

The previous prime is 51000111073. The next prime is 51000111089. The reversal of 51000111076 is 67011100015.

It can be written as a sum of positive squares in 4 ways, for example, as 5971271076 + 45028840000 = 77274^2 + 212200^2 .

It is a super-2 number, since 2×51000111076² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51000111073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434670 + ... + 539386.

It is an arithmetic number, because the mean of its divisors is an integer number (3740265165).

Almost surely, 2^51000111076 is an apocalyptic number.

It is an amenable number.

51000111076 is a deficient number, since it is larger than the sum of its proper divisors (38766252884).

51000111076 is a wasteful number, since it uses less digits than its factorization.

51000111076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105423 (or 105421 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 22.

The spelling of 51000111076 in words is "fifty-one billion, one hundred eleven thousand, seventy-six".