51788726092802 has 4 divisors (see below), whose sum is σ = 77683089139206. Its totient is φ = 25894363046400.

The previous prime is 51788726092801. The next prime is 51788726092819. The reversal of 51788726092802 is 20829062788715.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 31347558034321 + 20441168058481 = 5598889^2 + 4521191^2 .

It is a super-2 number, since 2×51788726092802² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51788726092801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12947181523199 + ... + 12947181523202.

Almost surely, 2^{51788726092802} is an apocalyptic number.

51788726092802 is a deficient number, since it is larger than the sum of its proper divisors (25894363046404).

51788726092802 is a wasteful number, since it uses less digits than its factorization.

51788726092802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25894363046403.

The product of its (nonzero) digits is 54190080, while the sum is 65.

The spelling of 51788726092802 in words is "fifty-one trillion, seven hundred eighty-eight billion, seven hundred twenty-six million, ninety-two thousand, eight hundred two".