51892389117 has 6 divisors (see below), whose sum is σ = 74955673182. Its totient is φ = 34594926072.

The previous prime is 51892389079. The next prime is 51892389119. The reversal of 51892389117 is 71198329815.

51892389117 is a `hidden beast` number, since 518 + 9 + 2 + 3 + 8 + 9 + 117 = 666.

It can be written as a sum of positive squares in only one way, i.e., 35338736196 + 16553652921 = 187986^2 + 128661^2 .

It is not a de Polignac number, because 51892389117 - 2¹⁸ = 51892126973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51892389119) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2882910498 + ... + 2882910515.

It is an arithmetic number, because the mean of its divisors is an integer number (12492612197).

Almost surely, 2^51892389117 is an apocalyptic number.

It is an amenable number.

51892389117 is a deficient number, since it is larger than the sum of its proper divisors (23063284065).

51892389117 is a wasteful number, since it uses less digits than its factorization.

51892389117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5765821019 (or 5765821016 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 54.

The spelling of 51892389117 in words is "fifty-one billion, eight hundred ninety-two million, three hundred eighty-nine thousand, one hundred seventeen".