51351792338 has 54 divisors (see below), whose sum is σ = 98537299749. Its totient is φ = 19997577600.

The previous prime is 51351792307. The next prime is 51351792353. The reversal of 51351792338 is 83329715315.

It can be written as a sum of positive squares in 2 ways, for example, as 50587656889 + 764135449 = 224917^2 + 27643^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=160237.

Its product of digits (680400) is a multiple of the sum of its prime factors (4200).

It is a junction number, because it is equal to n+sod(n) for n = 51351792292 and 51351792301.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 24675458 + ... + 24677538.

Almost surely, 2^51351792338 is an apocalyptic number.

51351792338 is a deficient number, since it is larger than the sum of its proper divisors (47185507411).

51351792338 is an equidigital number, since it uses as much as digits as its factorization.

51351792338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4200 (or 2101 counting only the distinct ones).

The product of its digits is 680400, while the sum is 47.

The spelling of 51351792338 in words is "fifty-one billion, three hundred fifty-one million, seven hundred ninety-two thousand, three hundred thirty-eight".