51791465599 has 2 divisors, whose sum is σ = 51791465600. Its totient is φ = 51791465598.

The previous prime is 51791465597. The next prime is 51791465611. The reversal of 51791465599 is 99556419715.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51791465599 - 2¹ = 51791465597 is a prime.

Together with 51791465597, it forms a pair of twin primes.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51791465591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25895732799 + 25895732800.

It is an arithmetic number, because the mean of its divisors is an integer number (25895732800).

Almost surely, 2^51791465599 is an apocalyptic number.

51791465599 is a deficient number, since it is larger than the sum of its proper divisors (1).

51791465599 is an equidigital number, since it uses as much as digits as its factorization.

51791465599 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15309000, while the sum is 61.

The spelling of 51791465599 in words is "fifty-one billion, seven hundred ninety-one million, four hundred sixty-five thousand, five hundred ninety-nine".