51465030720 has 112 divisors (see below), whose sum is σ = 163724051520. Its totient is φ = 13696915456.

The previous prime is 51465030679. The next prime is 51465030731. The reversal of 51465030720 is 2703056415.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435979 + ... + 541301.

Almost surely, 2^51465030720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51465030720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81862025760).

51465030720 is an abundant number, since it is smaller than the sum of its proper divisors (112259020800).

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

51465030720 is a wasteful number, since it uses less digits than its factorization.

51465030720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105852 (or 105842 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The spelling of 51465030720 in words is "fifty-one billion, four hundred sixty-five million, thirty thousand, seven hundred twenty".