51813745612571 has 2 divisors, whose sum is σ = 51813745612572. Its totient is φ = 51813745612570.

The previous prime is 51813745612529. The next prime is 51813745612703. The reversal of 51813745612571 is 17521654731815.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51813745612571 - 2³⁴ = 51796565743387 is a prime.

It is a super-3 number, since 3×51813745612571³ (a number of 42 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (51813745612501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25906872806285 + 25906872806286.

It is an arithmetic number, because the mean of its divisors is an integer number (25906872806286).

Almost surely, 2^{51813745612571} is an apocalyptic number.

51813745612571 is a deficient number, since it is larger than the sum of its proper divisors (1).

51813745612571 is an equidigital number, since it uses as much as digits as its factorization.

51813745612571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7056000, while the sum is 56.

The spelling of 51813745612571 in words is "fifty-one trillion, eight hundred thirteen billion, seven hundred forty-five million, six hundred twelve thousand, five hundred seventy-one".