8543991292 has 12 divisors (see below), whose sum is σ = 14953631056. Its totient is φ = 4271525280.

The previous prime is 8543991283. The next prime is 8543991293. The reversal of 8543991292 is 2921993458.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8543991293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75009 + ... + 150712.

Almost surely, 2^8543991292 is an apocalyptic number.

It is an amenable number.

8543991292 is a deficient number, since it is larger than the sum of its proper divisors (6409639764).

8543991292 is a wasteful number, since it uses less digits than its factorization.

8543991292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235188 (or 235186 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 52.

The square root of 8543991292 is about 92433.7129623169. The cubic root of 8543991292 is about 2044.3422255862.

The spelling of 8543991292 in words is "eight billion, five hundred forty-three million, nine hundred ninety-one thousand, two hundred ninety-two".