51712306615 has 8 divisors (see below), whose sum is σ = 62087804640. Its totient is φ = 41347820832.

The previous prime is 51712306603. The next prime is 51712306619. The reversal of 51712306615 is 51660321715.

51712306615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51712306615 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51712306619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2742724 + ... + 2761513.

It is an arithmetic number, because the mean of its divisors is an integer number (7760975580).

Almost surely, 2^51712306615 is an apocalyptic number.

51712306615 is a deficient number, since it is larger than the sum of its proper divisors (10375498025).

51712306615 is a wasteful number, since it uses less digits than its factorization.

51712306615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5506121.

The product of its (nonzero) digits is 37800, while the sum is 37.

The spelling of 51712306615 in words is "fifty-one billion, seven hundred twelve million, three hundred six thousand, six hundred fifteen".