51712350459 has 24 divisors (see below), whose sum is σ = 87498451008. Its totient is φ = 26863557840.

The previous prime is 51712350457. The next prime is 51712350467. The reversal of 51712350459 is 95405321715.

It is a happy number.

It is not a de Polignac number, because 51712350459 - 2¹ = 51712350457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51712350459.

It is not an unprimeable number, because it can be changed into a prime (51712350457) 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 23 ways as a sum of consecutive naturals, for example, 15988597 + ... + 15991830.

It is an arithmetic number, because the mean of its divisors is an integer number (3645768792).

Almost surely, 2^51712350459 is an apocalyptic number.

51712350459 is a deficient number, since it is larger than the sum of its proper divisors (35786100549).

51712350459 is a wasteful number, since it uses less digits than its factorization.

51712350459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31980455 (or 31980448 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 42.

The spelling of 51712350459 in words is "fifty-one billion, seven hundred twelve million, three hundred fifty thousand, four hundred fifty-nine".