2115499859 has 8 divisors (see below), whose sum is σ = 2387398320. Its totient is φ = 1856864800.

The previous prime is 2115499849. The next prime is 2115499871. The reversal of 2115499859 is 9589945112.

It is a happy number.

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 2115499859 - 2¹² = 2115495763 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2115499859.

It is not an unprimeable number, because it can be changed into a prime (2115499849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3315512 + ... + 3316149.

It is an arithmetic number, because the mean of its divisors is an integer number (298424790).

Almost surely, 2^2115499859 is an apocalyptic number.

2115499859 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2115499859 is a deficient number, since it is larger than the sum of its proper divisors (271898461).

2115499859 is a wasteful number, since it uses less digits than its factorization.

2115499859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6631701.

The product of its digits is 1166400, while the sum is 53.

The square root of 2115499859 is about 45994.5633635107. The cubic root of 2115499859 is about 1283.7220478228.

The spelling of 2115499859 in words is "two billion, one hundred fifteen million, four hundred ninety-nine thousand, eight hundred fifty-nine".