8911049990 has 16 divisors (see below), whose sum is σ = 16077113280. Its totient is φ = 3556148160.

The previous prime is 8911049981. The next prime is 8911050013. The reversal of 8911049990 is 999401198.

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, 1029455 + ... + 1038074.

It is an arithmetic number, because the mean of its divisors is an integer number (1004819580).

Almost surely, 2^8911049990 is an apocalyptic number.

8911049990 is a deficient number, since it is larger than the sum of its proper divisors (7166063290).

8911049990 is a wasteful number, since it uses less digits than its factorization.

8911049990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067967.

The product of its (nonzero) digits is 209952, while the sum is 50.

The square root of 8911049990 is about 94398.3579836005. The cubic root of 8911049990 is about 2073.2084009931.

The spelling of 8911049990 in words is "eight billion, nine hundred eleven million, forty-nine thousand, nine hundred ninety".