51234263616 has 56 divisors (see below), whose sum is σ = 135579697344. Its totient is φ = 17075269120.

The previous prime is 51234263593. The next prime is 51234263659. The reversal of 51234263616 is 61636243215.

51234263616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1374181 + ... + 1410971.

It is an arithmetic number, because the mean of its divisors is an integer number (2421066024).

Almost surely, 2^51234263616 is an apocalyptic number.

It is an amenable number.

51234263616 is an abundant number, since it is smaller than the sum of its proper divisors (84345433728).

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

51234263616 is a wasteful number, since it uses less digits than its factorization.

51234263616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44059 (or 44049 counting only the distinct ones).

The product of its digits is 155520, while the sum is 39.

The spelling of 51234263616 in words is "fifty-one billion, two hundred thirty-four million, two hundred sixty-three thousand, six hundred sixteen".