10402563989 has 2 divisors, whose sum is σ = 10402563990. Its totient is φ = 10402563988.

The previous prime is 10402563967. The next prime is 10402564013. The reversal of 10402563989 is 98936520401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10369959889 + 32604100 = 101833^2 + 5710^2 .

It is a cyclic number.

It is not a de Polignac number, because 10402563989 - 2²⁸ = 10134128533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10402563089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5201281994 + 5201281995.

It is an arithmetic number, because the mean of its divisors is an integer number (5201281995).

Almost surely, 2^10402563989 is an apocalyptic number.

It is an amenable number.

10402563989 is a deficient number, since it is larger than the sum of its proper divisors (1).

10402563989 is an equidigital number, since it uses as much as digits as its factorization.

10402563989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 47.

The spelling of 10402563989 in words is "ten billion, four hundred two million, five hundred sixty-three thousand, nine hundred eighty-nine".