51470943764 has 6 divisors (see below), whose sum is σ = 90074151594. Its totient is φ = 25735471880.

The previous prime is 51470943757. The next prime is 51470943781. The reversal of 51470943764 is 46734907415.

It can be written as a sum of positive squares in only one way, i.e., 45173251600 + 6297692164 = 212540^2 + 79358^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6433867967 + ... + 6433867974.

It is an arithmetic number, because the mean of its divisors is an integer number (15012358599).

Almost surely, 2^51470943764 is an apocalyptic number.

It is an amenable number.

51470943764 is a deficient number, since it is larger than the sum of its proper divisors (38603207830).

51470943764 is a wasteful number, since it uses less digits than its factorization.

51470943764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12867735945 (or 12867735943 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 51470943764 in words is "fifty-one billion, four hundred seventy million, nine hundred forty-three thousand, seven hundred sixty-four".