8543921692 has 6 divisors (see below), whose sum is σ = 14951862968. Its totient is φ = 4271960844.

The previous prime is 8543921689. The next prime is 8543921719. The reversal of 8543921692 is 2961293458.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067990208 + ... + 1067990215.

Almost surely, 2^8543921692 is an apocalyptic number.

It is an amenable number.

8543921692 is a deficient number, since it is larger than the sum of its proper divisors (6407941276).

8543921692 is a wasteful number, since it uses less digits than its factorization.

8543921692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135980427 (or 2135980425 counting only the distinct ones).

The product of its digits is 933120, while the sum is 49.

The square root of 8543921692 is about 92433.3364755379. The cubic root of 8543921692 is about 2044.3366744489.

The spelling of 8543921692 in words is "eight billion, five hundred forty-three million, nine hundred twenty-one thousand, six hundred ninety-two".