2115688069 has 8 divisors (see below), whose sum is σ = 2387610720. Its totient is φ = 1857030000.

The previous prime is 2115688061. The next prime is 2115688087. The reversal of 2115688069 is 9608865112.

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

It is a cyclic number.

It is not a de Polignac number, because 2115688069 - 2³ = 2115688061 is a prime.

It is a super-2 number, since 2×2115688069² = 8952272010617897522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115688061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3315807 + ... + 3316444.

It is an arithmetic number, because the mean of its divisors is an integer number (298451340).

Almost surely, 2^2115688069 is an apocalyptic number.

2115688069 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2115688069 is a deficient number, since it is larger than the sum of its proper divisors (271922651).

2115688069 is a wasteful number, since it uses less digits than its factorization.

2115688069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6632291.

The product of its (nonzero) digits is 207360, while the sum is 46.

The square root of 2115688069 is about 45996.6093206880. The cubic root of 2115688069 is about 1283.7601163925.

The spelling of 2115688069 in words is "two billion, one hundred fifteen million, six hundred eighty-eight thousand, sixty-nine".