51846330520 has 64 divisors (see below), whose sum is σ = 117262585440. Its totient is φ = 20630553600.

The previous prime is 51846330493. The next prime is 51846330539. The reversal of 51846330520 is 2503364815.

It is a self number, because there is not a number n which added to its sum of digits gives 51846330520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14639950 + ... + 14643490.

Almost surely, 2^51846330520 is an apocalyptic number.

It is an amenable number.

51846330520 is an abundant number, since it is smaller than the sum of its proper divisors (65416254920).

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

51846330520 is a wasteful number, since it uses less digits than its factorization.

51846330520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5356 (or 5352 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 51846330520 in words is "fifty-one billion, eight hundred forty-six million, three hundred thirty thousand, five hundred twenty".