8981926918 has 32 divisors (see below), whose sum is σ = 14043414528. Its totient is φ = 4308239880.

The previous prime is 8981926871. The next prime is 8981926939. The reversal of 8981926918 is 8196291898.

It is a super-2 number, since 2×8981926918² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7566321 + ... + 7567507.

It is an arithmetic number, because the mean of its divisors is an integer number (438856704).

Almost surely, 2^8981926918 is an apocalyptic number.

8981926918 is a deficient number, since it is larger than the sum of its proper divisors (5061487610).

8981926918 is a wasteful number, since it uses less digits than its factorization.

8981926918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409 (or 1347 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 61.

The square root of 8981926918 is about 94773.0284310890. The cubic root of 8981926918 is about 2078.6905372105.

The spelling of 8981926918 in words is "eight billion, nine hundred eighty-one million, nine hundred twenty-six thousand, nine hundred eighteen".