90090909094 has 16 divisors (see below), whose sum is σ = 135252661536. Its totient is φ = 45006710400.

The previous prime is 90090909071. The next prime is 90090909101. The reversal of 90090909094 is 49090909009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19080654 + ... + 19085374.

It is an arithmetic number, because the mean of its divisors is an integer number (8453291346).

Almost surely, 2^90090909094 is an apocalyptic number.

90090909094 is a deficient number, since it is larger than the sum of its proper divisors (45161752442).

90090909094 is a wasteful number, since it uses less digits than its factorization.

90090909094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10911.

The product of its (nonzero) digits is 236196, while the sum is 49.

The spelling of 90090909094 in words is "ninety billion, ninety million, nine hundred nine thousand, ninety-four".