51316503586 has 16 divisors (see below), whose sum is σ = 81679502520. Its totient is φ = 24096551680.

The previous prime is 51316503551. The next prime is 51316503587. The reversal of 51316503586 is 68530561315.

It can be written as a sum of positive squares in 4 ways, for example, as 39434413561 + 11882090025 = 198581^2 + 109005^2 .

It is not an unprimeable number, because it can be changed into a prime (51316503587) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 1621321 + ... + 1652668.

Almost surely, 2^51316503586 is an apocalyptic number.

51316503586 is a deficient number, since it is larger than the sum of its proper divisors (30362998934).

51316503586 is a wasteful number, since it uses less digits than its factorization.

51316503586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3274469.

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 51316503586 in words is "fifty-one billion, three hundred sixteen million, five hundred three thousand, five hundred eighty-six".