8951189090 has 16 divisors (see below), whose sum is σ = 16117281720. Its totient is φ = 3579333120.

The previous prime is 8951189063. The next prime is 8951189171. The reversal of 8951189090 is 909811598.

It can be written as a sum of positive squares in 4 ways, for example, as 7702344169 + 1248844921 = 87763^2 + 35339^2 .

It is a super-2 number, since 2×8951189090² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109541 + ... + 172920.

Almost surely, 2^8951189090 is an apocalyptic number.

8951189090 is a deficient number, since it is larger than the sum of its proper divisors (7166092630).

8951189090 is a wasteful number, since it uses less digits than its factorization.

8951189090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285637.

The product of its (nonzero) digits is 233280, while the sum is 50.

The square root of 8951189090 is about 94610.7239693260. The cubic root of 8951189090 is about 2076.3166049838.

The spelling of 8951189090 in words is "eight billion, nine hundred fifty-one million, one hundred eighty-nine thousand, ninety".