51093739611 has 12 divisors (see below), whose sum is σ = 75602119320. Its totient is φ = 33231700320.

The previous prime is 51093739607. The next prime is 51093739661. The reversal of 51093739611 is 11693739015.

It is a happy number.

51093739611 is a `hidden beast` number, since 510 + 9 + 3 + 73 + 9 + 61 + 1 = 666.

It is not a de Polignac number, because 51093739611 - 2² = 51093739607 is a prime.

It is a super-2 number, since 2×51093739611² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51093739601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69232341 + ... + 69233078.

It is an arithmetic number, because the mean of its divisors is an integer number (6300176610).

Almost surely, 2^51093739611 is an apocalyptic number.

51093739611 is a deficient number, since it is larger than the sum of its proper divisors (24508379709).

51093739611 is a wasteful number, since it uses less digits than its factorization.

51093739611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138465466 (or 138465463 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The spelling of 51093739611 in words is "fifty-one billion, ninety-three million, seven hundred thirty-nine thousand, six hundred eleven".