624887695961 has 2 divisors, whose sum is σ = 624887695962. Its totient is φ = 624887695960.

The previous prime is 624887695823. The next prime is 624887695973. The reversal of 624887695961 is 169596788426.

624887695961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 621170964736 + 3716731225 = 788144^2 + 60965^2 .

It is a cyclic number.

It is not a de Polignac number, because 624887695961 - 2³⁴ = 607707826777 is a prime.

It is not a weakly prime, because it can be changed into another prime (624887695981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312443847980 + 312443847981.

It is an arithmetic number, because the mean of its divisors is an integer number (312443847981).

Almost surely, 2^624887695961 is an apocalyptic number.

It is an amenable number.

624887695961 is a deficient number, since it is larger than the sum of its proper divisors (1).

624887695961 is an equidigital number, since it uses as much as digits as its factorization.

624887695961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 313528320, while the sum is 71.

The spelling of 624887695961 in words is "six hundred twenty-four billion, eight hundred eighty-seven million, six hundred ninety-five thousand, nine hundred sixty-one".