51037330787 has 4 divisors (see below), whose sum is σ = 51322455720. Its totient is φ = 50752205856.

The previous prime is 51037330781. The next prime is 51037330819. The reversal of 51037330787 is 78703373015.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78703373015 = 5 ⋅15740674603.

It is a cyclic number.

It is not a de Polignac number, because 51037330787 - 2¹⁴ = 51037314403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51037330781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142562198 + ... + 142562555.

It is an arithmetic number, because the mean of its divisors is an integer number (12830613930).

Almost surely, 2^51037330787 is an apocalyptic number.

51037330787 is a deficient number, since it is larger than the sum of its proper divisors (285124933).

51037330787 is a wasteful number, since it uses less digits than its factorization.

51037330787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285124932.

The product of its (nonzero) digits is 370440, while the sum is 44.

The spelling of 51037330787 in words is "fifty-one billion, thirty-seven million, three hundred thirty thousand, seven hundred eighty-seven".