8943431372 has 12 divisors (see below), whose sum is σ = 15652355880. Its totient is φ = 4471329696.

The previous prime is 8943431353. The next prime is 8943431477. The reversal of 8943431372 is 2731343498.

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, 40793 + ... + 139824.

It is an arithmetic number, because the mean of its divisors is an integer number (1304362990).

Almost surely, 2^8943431372 is an apocalyptic number.

It is an amenable number.

8943431372 is a deficient number, since it is larger than the sum of its proper divisors (6708924508).

8943431372 is a wasteful number, since it uses less digits than its factorization.

8943431372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193000 (or 192998 counting only the distinct ones).

The product of its digits is 435456, while the sum is 44.

The square root of 8943431372 is about 94569.7169922804. The cubic root of 8943431372 is about 2075.7166052123.

The spelling of 8943431372 in words is "eight billion, nine hundred forty-three million, four hundred thirty-one thousand, three hundred seventy-two".