8691688942 has 8 divisors (see below), whose sum is σ = 13038466896. Its totient is φ = 4345533312.

The previous prime is 8691688927. The next prime is 8691689011. The reversal of 8691688942 is 2498861968.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 118938 + ... + 177565.

It is an arithmetic number, because the mean of its divisors is an integer number (1629808362).

Almost surely, 2^8691688942 is an apocalyptic number.

8691688942 is a deficient number, since it is larger than the sum of its proper divisors (4346777954).

8691688942 is a wasteful number, since it uses less digits than its factorization.

8691688942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311162.

The product of its digits is 11943936, while the sum is 61.

The square root of 8691688942 is about 93229.2279384529. The cubic root of 8691688942 is about 2056.0549865875.

The spelling of 8691688942 in words is "eight billion, six hundred ninety-one million, six hundred eighty-eight thousand, nine hundred forty-two".