51326544776 has 16 divisors (see below), whose sum is σ = 103640138700. Its totient is φ = 23689174464.

The previous prime is 51326544757. The next prime is 51326544791. The reversal of 51326544776 is 67744562315.

It can be written as a sum of positive squares in 2 ways, for example, as 50253982276 + 1072562500 = 224174^2 + 32750^2 .

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, 246762131 + ... + 246762338.

Almost surely, 2^51326544776 is an apocalyptic number.

It is an amenable number.

51326544776 is an abundant number, since it is smaller than the sum of its proper divisors (52313593924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51326544776 is a wasteful number, since it uses less digits than its factorization.

51326544776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493524488 (or 493524484 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 50.

The spelling of 51326544776 in words is "fifty-one billion, three hundred twenty-six million, five hundred forty-four thousand, seven hundred seventy-six".