402424544993 has 2 divisors, whose sum is σ = 402424544994. Its totient is φ = 402424544992.

The previous prime is 402424544987. The next prime is 402424545049. The reversal of 402424544993 is 399445424204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339850523089 + 62574021904 = 582967^2 + 250148^2 .

It is a cyclic number.

It is not a de Polignac number, because 402424544993 - 2¹⁴ = 402424528609 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (402424544903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201212272496 + 201212272497.

It is an arithmetic number, because the mean of its divisors is an integer number (201212272497).

Almost surely, 2^402424544993 is an apocalyptic number.

It is an amenable number.

402424544993 is a deficient number, since it is larger than the sum of its proper divisors (1).

402424544993 is an equidigital number, since it uses as much as digits as its factorization.

402424544993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4976640, while the sum is 50.

The spelling of 402424544993 in words is "four hundred two billion, four hundred twenty-four million, five hundred forty-four thousand, nine hundred ninety-three".