51789281847136 has 24 divisors (see below), whose sum is σ = 102347829826704. Its totient is φ = 25796182208640.

The previous prime is 51789281847091. The next prime is 51789281847161. The reversal of 51789281847136 is 63174818298715.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3076826295 + ... + 3076843126.

It is an arithmetic number, because the mean of its divisors is an integer number (4264492909446).

Almost surely, 2^{51789281847136} is an apocalyptic number.

It is an amenable number.

51789281847136 is a deficient number, since it is larger than the sum of its proper divisors (50558547979568).

51789281847136 is a wasteful number, since it uses less digits than its factorization.

51789281847136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6153669694 (or 6153669686 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 70.

The spelling of 51789281847136 in words is "fifty-one trillion, seven hundred eighty-nine billion, two hundred eighty-one million, eight hundred forty-seven thousand, one hundred thirty-six".