625511696791 has 2 divisors, whose sum is σ = 625511696792. Its totient is φ = 625511696790.

The previous prime is 625511696759. The next prime is 625511696837. The reversal of 625511696791 is 197696115526.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 625511696791 - 2⁵ = 625511696759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (625511696291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312755848395 + 312755848396.

It is an arithmetic number, because the mean of its divisors is an integer number (312755848396).

Almost surely, 2^625511696791 is an apocalyptic number.

625511696791 is a deficient number, since it is larger than the sum of its proper divisors (1).

625511696791 is an equidigital number, since it uses as much as digits as its factorization.

625511696791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6123600, while the sum is 58.

The spelling of 625511696791 in words is "six hundred twenty-five billion, five hundred eleven million, six hundred ninety-six thousand, seven hundred ninety-one".