402043431169 has 2 divisors, whose sum is σ = 402043431170. Its totient is φ = 402043431168.

The previous prime is 402043431161. The next prime is 402043431211. The reversal of 402043431169 is 961134340204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 384970611600 + 17072819569 = 620460^2 + 130663^2 .

It is a cyclic number.

It is not a de Polignac number, because 402043431169 - 2³ = 402043431161 is a prime.

It is a super-2 number, since 2×402043431169² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (402043431161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201021715584 + 201021715585.

It is an arithmetic number, because the mean of its divisors is an integer number (201021715585).

Almost surely, 2^402043431169 is an apocalyptic number.

It is an amenable number.

402043431169 is a deficient number, since it is larger than the sum of its proper divisors (1).

402043431169 is an equidigital number, since it uses as much as digits as its factorization.

402043431169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 402043431169 in words is "four hundred two billion, forty-three million, four hundred thirty-one thousand, one hundred sixty-nine".