51135246433564 has 18 divisors (see below), whose sum is σ = 93546568503080. Its totient is φ = 24455987423736.

The previous prime is 51135246433543. The next prime is 51135246433603. The reversal of 51135246433564 is 46533464253115.

It is a super-2 number, since 2×51135246433564² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12082995624 + ... + 12082999855.

Almost surely, 2^{51135246433564} is an apocalyptic number.

It is an amenable number.

51135246433564 is a deficient number, since it is larger than the sum of its proper divisors (42411322069516).

51135246433564 is a wasteful number, since it uses less digits than its factorization.

51135246433564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24165995529 (or 24165995504 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 52.

The spelling of 51135246433564 in words is "fifty-one trillion, one hundred thirty-five billion, two hundred forty-six million, four hundred thirty-three thousand, five hundred sixty-four".