51086542185231 has 64 divisors (see below), whose sum is σ = 81546722611200. Its totient is φ = 27831769330176.

The previous prime is 51086542185221. The next prime is 51086542185251. The reversal of 51086542185231 is 13258124568015.

51086542185231 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 51086542185231 - 2³⁰ = 51085468443407 is a prime.

It is a super-2 number, since 2×51086542185231² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51086542185221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18136330 + ... + 20762936.

It is an arithmetic number, because the mean of its divisors is an integer number (1274167540800).

Almost surely, 2^{51086542185231} is an apocalyptic number.

51086542185231 is a deficient number, since it is larger than the sum of its proper divisors (30460180425969).

51086542185231 is a wasteful number, since it uses less digits than its factorization.

51086542185231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627048.

The product of its (nonzero) digits is 2304000, while the sum is 51.

The spelling of 51086542185231 in words is "fifty-one trillion, eighty-six billion, five hundred forty-two million, one hundred eighty-five thousand, two hundred thirty-one".