51299430264 has 48 divisors (see below), whose sum is σ = 139179388920. Its totient is φ = 17069849280.

The previous prime is 51299430173. The next prime is 51299430269. The reversal of 51299430264 is 46203499215.

51299430264 is a `hidden beast` number, since 51 + 299 + 4 + 302 + 6 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51299430269) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 582787 + ... + 665010.

Almost surely, 2^51299430264 is an apocalyptic number.

It is an amenable number.

51299430264 is an abundant number, since it is smaller than the sum of its proper divisors (87879958656).

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

51299430264 is a wasteful number, since it uses less digits than its factorization.

51299430264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248380 (or 1248373 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 51299430264 in words is "fifty-one billion, two hundred ninety-nine million, four hundred thirty thousand, two hundred sixty-four".