50978745793 has 4 divisors (see below), whose sum is σ = 51031248048. Its totient is φ = 50926243540.

The previous prime is 50978745709. The next prime is 50978745799. The reversal of 50978745793 is 39754787905.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50978745793 - 2²⁵ = 50945191361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50978745799) 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, 26249671 + ... + 26251612.

It is an arithmetic number, because the mean of its divisors is an integer number (12757812012).

Almost surely, 2^50978745793 is an apocalyptic number.

It is an amenable number.

50978745793 is a deficient number, since it is larger than the sum of its proper divisors (52502255).

50978745793 is an equidigital number, since it uses as much as digits as its factorization.

50978745793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52502254.

The product of its (nonzero) digits is 66679200, while the sum is 64.

The spelling of 50978745793 in words is "fifty billion, nine hundred seventy-eight million, seven hundred forty-five thousand, seven hundred ninety-three".