402809816963 has 2 divisors, whose sum is σ = 402809816964. Its totient is φ = 402809816962.

The previous prime is 402809816917. The next prime is 402809816999. The reversal of 402809816963 is 369618908204.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402809816963 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402809816899 and 402809816908.

It is not a weakly prime, because it can be changed into another prime (402809816663) 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, 201404908481 + 201404908482.

It is an arithmetic number, because the mean of its divisors is an integer number (201404908482).

Almost surely, 2^402809816963 is an apocalyptic number.

402809816963 is a deficient number, since it is larger than the sum of its proper divisors (1).

402809816963 is an equidigital number, since it uses as much as digits as its factorization.

402809816963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4478976, while the sum is 56.

The spelling of 402809816963 in words is "four hundred two billion, eight hundred nine million, eight hundred sixteen thousand, nine hundred sixty-three".