51953779879 has 16 divisors (see below), whose sum is σ = 54050911200. Its totient is φ = 49877599744.

The previous prime is 51953779861. The next prime is 51953779907. The reversal of 51953779879 is 97897735915.

51953779879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51953779879 - 2²³ = 51945391271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51953779279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5637027 + ... + 5646235.

It is an arithmetic number, because the mean of its divisors is an integer number (3378181950).

Almost surely, 2^51953779879 is an apocalyptic number.

51953779879 is a deficient number, since it is larger than the sum of its proper divisors (2097131321).

51953779879 is a wasteful number, since it uses less digits than its factorization.

51953779879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10322.

The product of its digits is 150028200, while the sum is 70.

The spelling of 51953779879 in words is "fifty-one billion, nine hundred fifty-three million, seven hundred seventy-nine thousand, eight hundred seventy-nine".