50809298779 has 2 divisors, whose sum is σ = 50809298780. Its totient is φ = 50809298778.

The previous prime is 50809298773. The next prime is 50809298801. The reversal of 50809298779 is 97789290805.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50809298779 - 2²⁹ = 50272427867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50809298779.

It is not a weakly prime, because it can be changed into another prime (50809298773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25404649389 + 25404649390.

It is an arithmetic number, because the mean of its divisors is an integer number (25404649390).

Almost surely, 2^50809298779 is an apocalyptic number.

50809298779 is a deficient number, since it is larger than the sum of its proper divisors (1).

50809298779 is an equidigital number, since it uses as much as digits as its factorization.

50809298779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22861440, while the sum is 64.

The spelling of 50809298779 in words is "fifty billion, eight hundred nine million, two hundred ninety-eight thousand, seven hundred seventy-nine".