51245461316 has 48 divisors (see below), whose sum is σ = 105958363392. Its totient is φ = 21227184000.

The previous prime is 51245461297. The next prime is 51245461327. The reversal of 51245461316 is 61316454215.

It is a self number, because there is not a number n which added to its sum of digits gives 51245461316.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7355 + ... + 320226.

It is an arithmetic number, because the mean of its divisors is an integer number (2207465904).

Almost surely, 2^51245461316 is an apocalyptic number.

It is an amenable number.

51245461316 is an abundant number, since it is smaller than the sum of its proper divisors (54712902076).

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

51245461316 is a wasteful number, since it uses less digits than its factorization.

51245461316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327780 (or 327778 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The spelling of 51245461316 in words is "fifty-one billion, two hundred forty-five million, four hundred sixty-one thousand, three hundred sixteen".