402534893213 has 2 divisors, whose sum is σ = 402534893214. Its totient is φ = 402534893212.

The previous prime is 402534893197. The next prime is 402534893273. The reversal of 402534893213 is 312398435204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 398278374649 + 4256518564 = 631093^2 + 65242^2 .

It is a cyclic number.

It is not a de Polignac number, because 402534893213 - 2⁴ = 402534893197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402534893273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201267446606 + 201267446607.

It is an arithmetic number, because the mean of its divisors is an integer number (201267446607).

Almost surely, 2^402534893213 is an apocalyptic number.

It is an amenable number.

402534893213 is a deficient number, since it is larger than the sum of its proper divisors (1).

402534893213 is an equidigital number, since it uses as much as digits as its factorization.

402534893213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 402534893213 in words is "four hundred two billion, five hundred thirty-four million, eight hundred ninety-three thousand, two hundred thirteen".