90436762631 has 2 divisors, whose sum is σ = 90436762632. Its totient is φ = 90436762630.

The previous prime is 90436762607. The next prime is 90436762643. The reversal of 90436762631 is 13626763409.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90436762631 - 2¹⁴ = 90436746247 is a prime.

It is a super-2 number, since 2×90436762631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90436762601) 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, 45218381315 + 45218381316.

It is an arithmetic number, because the mean of its divisors is an integer number (45218381316).

Almost surely, 2^90436762631 is an apocalyptic number.

90436762631 is a deficient number, since it is larger than the sum of its proper divisors (1).

90436762631 is an equidigital number, since it uses as much as digits as its factorization.

90436762631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 47.

The spelling of 90436762631 in words is "ninety billion, four hundred thirty-six million, seven hundred sixty-two thousand, six hundred thirty-one".