51871092537 has 16 divisors (see below), whose sum is σ = 76574967552. Its totient is φ = 30967815120.

The previous prime is 51871092517. The next prime is 51871092541. The reversal of 51871092537 is 73529017815.

It is not a de Polignac number, because 51871092537 - 2¹⁰ = 51871091513 is a prime.

It is a super-2 number, since 2×51871092537² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51871092517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11728023 + ... + 11732444.

It is an arithmetic number, because the mean of its divisors is an integer number (4785935472).

Almost surely, 2^51871092537 is an apocalyptic number.

It is an amenable number.

51871092537 is a deficient number, since it is larger than the sum of its proper divisors (24703875015).

51871092537 is a wasteful number, since it uses less digits than its factorization.

51871092537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23460548.

The product of its (nonzero) digits is 529200, while the sum is 48.

The spelling of 51871092537 in words is "fifty-one billion, eight hundred seventy-one million, ninety-two thousand, five hundred thirty-seven".