626512753961 has 2 divisors, whose sum is σ = 626512753962. Its totient is φ = 626512753960.

The previous prime is 626512753913. The next prime is 626512754003. The reversal of 626512753961 is 169357215626.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 623082894736 + 3429859225 = 789356^2 + 58565^2 .

It is a cyclic number.

It is not a de Polignac number, because 626512753961 - 2⁶ = 626512753897 is a prime.

It is not a weakly prime, because it can be changed into another prime (626512753561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313256376980 + 313256376981.

It is an arithmetic number, because the mean of its divisors is an integer number (313256376981).

Almost surely, 2^626512753961 is an apocalyptic number.

It is an amenable number.

626512753961 is a deficient number, since it is larger than the sum of its proper divisors (1).

626512753961 is an equidigital number, since it uses as much as digits as its factorization.

626512753961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4082400, while the sum is 53.

The spelling of 626512753961 in words is "six hundred twenty-six billion, five hundred twelve million, seven hundred fifty-three thousand, nine hundred sixty-one".