402934215623 has 2 divisors, whose sum is σ = 402934215624. Its totient is φ = 402934215622.

The previous prime is 402934215589. The next prime is 402934215653. The reversal of 402934215623 is 326512439204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402934215623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402934215653) 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, 201467107811 + 201467107812.

It is an arithmetic number, because the mean of its divisors is an integer number (201467107812).

Almost surely, 2^402934215623 is an apocalyptic number.

402934215623 is a deficient number, since it is larger than the sum of its proper divisors (1).

402934215623 is an equidigital number, since it uses as much as digits as its factorization.

402934215623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 402934215623 in words is "four hundred two billion, nine hundred thirty-four million, two hundred fifteen thousand, six hundred twenty-three".