90626082690 has 144 divisors (see below), whose sum is σ = 258879729024. Its totient is φ = 20279825280.

The previous prime is 90626082689. The next prime is 90626082727. The reversal of 90626082690 is 9628062609.

It is a super-2 number, since 2×90626082690² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 539607 + ... + 687333.

It is an arithmetic number, because the mean of its divisors is an integer number (1797775896).

Almost surely, 2^90626082690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90626082690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129439864512).

90626082690 is an abundant number, since it is smaller than the sum of its proper divisors (168253646334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90626082690 is a wasteful number, since it uses less digits than its factorization.

90626082690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147785 (or 147761 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 48.

The spelling of 90626082690 in words is "ninety billion, six hundred twenty-six million, eighty-two thousand, six hundred ninety".