90090990910 has 16 divisors (see below), whose sum is σ = 164216491200. Its totient is φ = 35580239136.

The previous prime is 90090990893. The next prime is 90090990911. The reversal of 90090990910 is 1909909009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90090990911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57018825 + ... + 57020404.

It is an arithmetic number, because the mean of its divisors is an integer number (10263530700).

Almost surely, 2^90090990910 is an apocalyptic number.

90090990910 is a deficient number, since it is larger than the sum of its proper divisors (74125500290).

90090990910 is a wasteful number, since it uses less digits than its factorization.

90090990910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114039315.

The product of its (nonzero) digits is 59049, while the sum is 46.

The spelling of 90090990910 in words is "ninety billion, ninety million, nine hundred ninety thousand, nine hundred ten".