51726805448 has 32 divisors (see below), whose sum is σ = 98825986200. Its totient is φ = 25376882688.

The previous prime is 51726805393. The next prime is 51726805457. The reversal of 51726805448 is 84450862715.

It can be written as a sum of positive squares in 4 ways, for example, as 39124048804 + 12602756644 = 197798^2 + 112262^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51726805396 and 51726805405.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116753 + ... + 342176.

Almost surely, 2^51726805448 is an apocalyptic number.

It is an amenable number.

51726805448 is a deficient number, since it is larger than the sum of its proper divisors (47099180752).

51726805448 is a wasteful number, since it uses less digits than its factorization.

51726805448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459201 (or 459197 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 50.

The spelling of 51726805448 in words is "fifty-one billion, seven hundred twenty-six million, eight hundred five thousand, four hundred forty-eight".