90083085688 has 8 divisors (see below), whose sum is σ = 168905785680. Its totient is φ = 45041542840.

The previous prime is 90083085661. The next prime is 90083085707. The reversal of 90083085688 is 88658038009.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×90083085688² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5630192848 + ... + 5630192863.

It is an arithmetic number, because the mean of its divisors is an integer number (21113223210).

Almost surely, 2^90083085688 is an apocalyptic number.

It is an amenable number.

90083085688 is a deficient number, since it is larger than the sum of its proper divisors (78822699992).

90083085688 is a wasteful number, since it uses less digits than its factorization.

90083085688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11260385717 (or 11260385713 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 55.

The spelling of 90083085688 in words is "ninety billion, eighty-three million, eighty-five thousand, six hundred eighty-eight".