51512422079 has 2 divisors, whose sum is σ = 51512422080. Its totient is φ = 51512422078.

The previous prime is 51512422069. The next prime is 51512422139. The reversal of 51512422079 is 97022421515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51512422079 - 2⁴ = 51512422063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51512422069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25756211039 + 25756211040.

It is an arithmetic number, because the mean of its divisors is an integer number (25756211040).

Almost surely, 2^51512422079 is an apocalyptic number.

51512422079 is a deficient number, since it is larger than the sum of its proper divisors (1).

51512422079 is an equidigital number, since it uses as much as digits as its factorization.

51512422079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 51512422079 in words is "fifty-one billion, five hundred twelve million, four hundred twenty-two thousand, seventy-nine".