8918732140 has 12 divisors (see below), whose sum is σ = 18729337536. Its totient is φ = 3567492848.

The previous prime is 8918732131. The next prime is 8918732171. The reversal of 8918732140 is 412378198.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222968284 + ... + 222968323.

It is an arithmetic number, because the mean of its divisors is an integer number (1560778128).

Almost surely, 2^8918732140 is an apocalyptic number.

It is an amenable number.

8918732140 is an abundant number, since it is smaller than the sum of its proper divisors (9810605396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8918732140 is a wasteful number, since it uses less digits than its factorization.

8918732140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445936616 (or 445936614 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 8918732140 is about 94439.0392793150. The cubic root of 8918732140 is about 2073.8039957271.

The spelling of 8918732140 in words is "eight billion, nine hundred eighteen million, seven hundred thirty-two thousand, one hundred forty".