8901986905 has 16 divisors (see below), whose sum is σ = 12259108224. Its totient is φ = 6078885120.

The previous prime is 8901986857. The next prime is 8901986909. The reversal of 8901986905 is 5096891098.

It is not a de Polignac number, because 8901986905 - 2⁹ = 8901986393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8901986909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519247 + ... + 536116.

It is an arithmetic number, because the mean of its divisors is an integer number (766194264).

Almost surely, 2^8901986905 is an apocalyptic number.

It is an amenable number.

8901986905 is a deficient number, since it is larger than the sum of its proper divisors (3357121319).

8901986905 is a wasteful number, since it uses less digits than its factorization.

8901986905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055616.

The product of its (nonzero) digits is 1399680, while the sum is 55.

The square root of 8901986905 is about 94350.3413083387. The cubic root of 8901986905 is about 2072.5053024931.

The spelling of 8901986905 in words is "eight billion, nine hundred one million, nine hundred eighty-six thousand, nine hundred five".