402934215653 has 2 divisors, whose sum is σ = 402934215654. Its totient is φ = 402934215652.

The previous prime is 402934215623. The next prime is 402934215727. The reversal of 402934215653 is 356512439204.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 393338445889 + 9595769764 = 627167^2 + 97958^2 .

It is a cyclic number.

It is not a de Polignac number, because 402934215653 - 2⁶ = 402934215589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402934215623) 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, 201467107826 + 201467107827.

It is an arithmetic number, because the mean of its divisors is an integer number (201467107827).

Almost surely, 2^402934215653 is an apocalyptic number.

It is an amenable number.

402934215653 is a deficient number, since it is larger than the sum of its proper divisors (1).

402934215653 is an equidigital number, since it uses as much as digits as its factorization.

402934215653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 402934215653 in words is "four hundred two billion, nine hundred thirty-four million, two hundred fifteen thousand, six hundred fifty-three".