8699991368 has 16 divisors (see below), whose sum is σ = 16495771500. Its totient is φ = 4301118976.

The previous prime is 8699991361. The next prime is 8699991397. The reversal of 8699991368 is 8631999968.

It can be written as a sum of positive squares in 2 ways, for example, as 8693324644 + 6666724 = 93238^2 + 2582^2 .

It is a super-2 number, since 2×8699991368² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8699991298 and 8699991307.

It is not an unprimeable number, because it can be changed into a prime (8699991361) 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, 6108833 + ... + 6110256.

Almost surely, 2^8699991368 is an apocalyptic number.

It is an amenable number.

8699991368 is a deficient number, since it is larger than the sum of its proper divisors (7795780132).

8699991368 is a wasteful number, since it uses less digits than its factorization.

8699991368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12219184 (or 12219180 counting only the distinct ones).

The product of its digits is 45349632, while the sum is 68.

The square root of 8699991368 is about 93273.7442584997. The cubic root of 8699991368 is about 2056.7094359942.

The spelling of 8699991368 in words is "eight billion, six hundred ninety-nine million, nine hundred ninety-one thousand, three hundred sixty-eight".