51700408264 has 8 divisors (see below), whose sum is σ = 96938265510. Its totient is φ = 25850204128.

The previous prime is 51700408241. The next prime is 51700408267. The reversal of 51700408264 is 46280400715.

It can be written as a sum of positive squares in only one way, i.e., 27812232900 + 23888175364 = 166770^2 + 154558^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (51700408267) 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, 3231275509 + ... + 3231275524.

Almost surely, 2^51700408264 is an apocalyptic number.

It is an amenable number.

51700408264 is a deficient number, since it is larger than the sum of its proper divisors (45237857246).

51700408264 is a wasteful number, since it uses less digits than its factorization.

51700408264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6462551039 (or 6462551035 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

Adding to 51700408264 its reverse (46280400715), we get a palindrome (97980808979).

The spelling of 51700408264 in words is "fifty-one billion, seven hundred million, four hundred eight thousand, two hundred sixty-four".