402355513969 has 2 divisors, whose sum is σ = 402355513970. Its totient is φ = 402355513968.

The previous prime is 402355513957. The next prime is 402355514047. The reversal of 402355513969 is 969315553204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 402311118400 + 44395569 = 634280^2 + 6663^2 .

It is a cyclic number.

It is not a de Polignac number, because 402355513969 - 2⁷ = 402355513841 is a prime.

It is a super-2 number, since 2×402355513969² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (402355513369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201177756984 + 201177756985.

It is an arithmetic number, because the mean of its divisors is an integer number (201177756985).

Almost surely, 2^402355513969 is an apocalyptic number.

It is an amenable number.

402355513969 is a deficient number, since it is larger than the sum of its proper divisors (1).

402355513969 is an equidigital number, since it uses as much as digits as its factorization.

402355513969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374000, while the sum is 52.

The spelling of 402355513969 in words is "four hundred two billion, three hundred fifty-five million, five hundred thirteen thousand, nine hundred sixty-nine".