402254054312317 has 2 divisors, whose sum is σ = 402254054312318. Its totient is φ = 402254054312316.

The previous prime is 402254054312233. The next prime is 402254054312351. The reversal of 402254054312317 is 713213450452204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 339189903917881 + 63064150394436 = 18417109^2 + 7941294^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402254054312317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402254154312317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201127027156158 + 201127027156159.

It is an arithmetic number, because the mean of its divisors is an integer number (201127027156159).

Almost surely, 2^{402254054312317} is an apocalyptic number.

It is an amenable number.

402254054312317 is a deficient number, since it is larger than the sum of its proper divisors (1).

402254054312317 is an equidigital number, since it uses as much as digits as its factorization.

402254054312317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 806400, while the sum is 43.

The spelling of 402254054312317 in words is "four hundred two trillion, two hundred fifty-four billion, fifty-four million, three hundred twelve thousand, three hundred seventeen".