51331640261115 has 16 divisors (see below), whose sum is σ = 82146981962016. Its totient is φ = 27371422291200.

The previous prime is 51331640261107. The next prime is 51331640261131. The reversal of 51331640261115 is 51116204613315.

It is not a de Polignac number, because 51331640261115 - 2³ = 51331640261107 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340704346 + ... + 340854975.

It is an arithmetic number, because the mean of its divisors is an integer number (5134186372626).

Almost surely, 2^{51331640261115} is an apocalyptic number.

51331640261115 is a deficient number, since it is larger than the sum of its proper divisors (30815341700901).

51331640261115 is a wasteful number, since it uses less digits than its factorization.

51331640261115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681564350.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 51331640261115 in words is "fifty-one trillion, three hundred thirty-one billion, six hundred forty million, two hundred sixty-one thousand, one hundred fifteen".