51334311979 has 2 divisors, whose sum is σ = 51334311980. Its totient is φ = 51334311978.

The previous prime is 51334311947. The next prime is 51334311989. The reversal of 51334311979 is 97911343315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51334311979 - 2⁵ = 51334311947 is a prime.

It is not a weakly prime, because it can be changed into another prime (51334311989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25667155989 + 25667155990.

It is an arithmetic number, because the mean of its divisors is an integer number (25667155990).

Almost surely, 2^51334311979 is an apocalyptic number.

51334311979 is a deficient number, since it is larger than the sum of its proper divisors (1).

51334311979 is an equidigital number, since it uses as much as digits as its factorization.

51334311979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 306180, while the sum is 46.

The spelling of 51334311979 in words is "fifty-one billion, three hundred thirty-four million, three hundred eleven thousand, nine hundred seventy-nine".