90603806814 has 48 divisors (see below), whose sum is σ = 197334446400. Its totient is φ = 30043657728.

The previous prime is 90603806791. The next prime is 90603806893. The reversal of 90603806814 is 41860830609.

It is a self number, because there is not a number n which added to its sum of digits gives 90603806814.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4330282 + ... + 4351154.

It is an arithmetic number, because the mean of its divisors is an integer number (4111134300).

Almost surely, 2^90603806814 is an apocalyptic number.

90603806814 is an abundant number, since it is smaller than the sum of its proper divisors (106730639586).

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

90603806814 is a wasteful number, since it uses less digits than its factorization.

90603806814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22129 (or 22126 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 90603806814 in words is "ninety billion, six hundred three million, eight hundred six thousand, eight hundred fourteen".