8991421162 has 8 divisors (see below), whose sum is σ = 13491581796. Its totient is φ = 4494227232.

The previous prime is 8991421157. The next prime is 8991421177. The reversal of 8991421162 is 2611241998.

8991421162 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8454618601 + 536802561 = 91949^2 + 23169^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×8991421162² (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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 734083 + ... + 746230.

Almost surely, 2^8991421162 is an apocalyptic number.

8991421162 is a deficient number, since it is larger than the sum of its proper divisors (4500160634).

8991421162 is a wasteful number, since it uses less digits than its factorization.

8991421162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483352.

The product of its digits is 62208, while the sum is 43.

The square root of 8991421162 is about 94823.1045790002. The cubic root of 8991421162 is about 2079.4226980508.

The spelling of 8991421162 in words is "eight billion, nine hundred ninety-one million, four hundred twenty-one thousand, one hundred sixty-two".