90100577631 has 4 divisors (see below), whose sum is σ = 120134103512. Its totient is φ = 60067051752.

The previous prime is 90100577621. The next prime is 90100577641. The reversal of 90100577631 is 13677500109.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (90100577621) and next prime (90100577641).

It is not a de Polignac number, because 90100577631 - 2⁵ = 90100577599 is a prime.

It is a super-2 number, since 2×90100577631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90100577631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90100577621) 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 in 3 ways as a sum of consecutive naturals, for example, 15016762936 + ... + 15016762941.

It is an arithmetic number, because the mean of its divisors is an integer number (30033525878).

Almost surely, 2^90100577631 is an apocalyptic number.

90100577631 is a deficient number, since it is larger than the sum of its proper divisors (30033525881).

90100577631 is a wasteful number, since it uses less digits than its factorization.

90100577631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30033525880.

The product of its (nonzero) digits is 39690, while the sum is 39.

The spelling of 90100577631 in words is "ninety billion, one hundred million, five hundred seventy-seven thousand, six hundred thirty-one".