90202988476631 has 2 divisors, whose sum is σ = 90202988476632. Its totient is φ = 90202988476630.

The previous prime is 90202988476609. The next prime is 90202988476651. The reversal of 90202988476631 is 13667488920209.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90202988476631 - 2³⁰ = 90201914734807 is a prime.

It is a super-2 number, since 2×90202988476631² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90202988476651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45101494238315 + 45101494238316.

It is an arithmetic number, because the mean of its divisors is an integer number (45101494238316).

Almost surely, 2^{90202988476631} is an apocalyptic number.

90202988476631 is a deficient number, since it is larger than the sum of its proper divisors (1).

90202988476631 is an equidigital number, since it uses as much as digits as its factorization.

90202988476631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62705664, while the sum is 65.

The spelling of 90202988476631 in words is "ninety trillion, two hundred two billion, nine hundred eighty-eight million, four hundred seventy-six thousand, six hundred thirty-one".