51127866856684 has 12 divisors (see below), whose sum is σ = 89473818857584. Its totient is φ = 25563918611664.

The previous prime is 51127866856669. The next prime is 51127866856687. The reversal of 51127866856684 is 48665866872115.

It is a super-2 number, since 2×51127866856684² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51127866856687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8604217 + ... + 13277359.

Almost surely, 2^{51127866856684} is an apocalyptic number.

It is an amenable number.

51127866856684 is a deficient number, since it is larger than the sum of its proper divisors (38345952000900).

51127866856684 is a wasteful number, since it uses less digits than its factorization.

51127866856684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7408344 (or 7408342 counting only the distinct ones).

The product of its digits is 928972800, while the sum is 73.

The spelling of 51127866856684 in words is "fifty-one trillion, one hundred twenty-seven billion, eight hundred sixty-six million, eight hundred fifty-six thousand, six hundred eighty-four".