51413603560243 has 18 divisors (see below), whose sum is σ = 53189702458692. Its totient is φ = 49695143492520.

The previous prime is 51413603560229. The next prime is 51413603560309. The reversal of 51413603560243 is 34206530631415.

It is not a de Polignac number, because 51413603560243 - 2⁵ = 51413603560211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51413603560243.

It is not an unprimeable number, because it can be changed into a prime (51413603560843) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 676430080 + ... + 676506082.

Almost surely, 2^{51413603560243} is an apocalyptic number.

51413603560243 is a deficient number, since it is larger than the sum of its proper divisors (1776098898449).

51413603560243 is an frugal number, since it uses more digits than its factorization.

51413603560243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77743 (or 76873 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 51413603560243 in words is "fifty-one trillion, four hundred thirteen billion, six hundred three million, five hundred sixty thousand, two hundred forty-three".