409963097893 has 2 divisors, whose sum is σ = 409963097894. Its totient is φ = 409963097892.

The previous prime is 409963097881. The next prime is 409963097941. The reversal of 409963097893 is 398790369904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 234932151204 + 175030946689 = 484698^2 + 418367^2 .

It is a cyclic number.

It is not a de Polignac number, because 409963097893 - 2²⁹ = 409426226981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409963097813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204981548946 + 204981548947.

It is an arithmetic number, because the mean of its divisors is an integer number (204981548947).

Almost surely, 2^409963097893 is an apocalyptic number.

It is an amenable number.

409963097893 is a deficient number, since it is larger than the sum of its proper divisors (1).

409963097893 is an equidigital number, since it uses as much as digits as its factorization.

409963097893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79361856, while the sum is 67.

The spelling of 409963097893 in words is "four hundred nine billion, nine hundred sixty-three million, ninety-seven thousand, eight hundred ninety-three".