51404023268 has 24 divisors (see below), whose sum is σ = 96912425400. Its totient is φ = 23716212480.

The previous prime is 51404023249. The next prime is 51404023273. The reversal of 51404023268 is 86232040415.

It can be written as a sum of positive squares in 4 ways, for example, as 1213686244 + 50190337024 = 34838^2 + 224032^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37793 + ... + 322856.

It is an arithmetic number, because the mean of its divisors is an integer number (4038017725).

Almost surely, 2^51404023268 is an apocalyptic number.

It is an amenable number.

51404023268 is a deficient number, since it is larger than the sum of its proper divisors (45508402132).

51404023268 is a wasteful number, since it uses less digits than its factorization.

51404023268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363407 (or 363405 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 51404023268 in words is "fifty-one billion, four hundred four million, twenty-three thousand, two hundred sixty-eight".