51789716835 has 16 divisors (see below), whose sum is σ = 82883105280. Its totient is φ = 27614662880.

The previous prime is 51789716813. The next prime is 51789716873. The reversal of 51789716835 is 53861798715.

It is a happy number.

51789716835 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51789716835 - 2¹² = 51789712739 is a prime.

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, 341451 + ... + 469220.

It is an arithmetic number, because the mean of its divisors is an integer number (5180194080).

Almost surely, 2^51789716835 is an apocalyptic number.

51789716835 is a deficient number, since it is larger than the sum of its proper divisors (31093388445).

51789716835 is a wasteful number, since it uses less digits than its factorization.

51789716835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814938.

The product of its digits is 12700800, while the sum is 60.

The spelling of 51789716835 in words is "fifty-one billion, seven hundred eighty-nine million, seven hundred sixteen thousand, eight hundred thirty-five".