2115259815 has 16 divisors (see below), whose sum is σ = 3396466656. Its totient is φ = 1124121600.

The previous prime is 2115259801. The next prime is 2115259829. The reversal of 2115259815 is 5189525112.

It is an interprime number because it is at equal distance from previous prime (2115259801) and next prime (2115259829).

It is not a de Polignac number, because 2115259815 - 2¹⁰ = 2115258791 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 246706 + ... + 255135.

It is an arithmetic number, because the mean of its divisors is an integer number (212279166).

Almost surely, 2^2115259815 is an apocalyptic number.

2115259815 is a deficient number, since it is larger than the sum of its proper divisors (1281206841).

2115259815 is a wasteful number, since it uses less digits than its factorization.

2115259815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502130.

The product of its digits is 36000, while the sum is 39.

The square root of 2115259815 is about 45991.9538071607. The cubic root of 2115259815 is about 1283.6734916971.

The spelling of 2115259815 in words is "two billion, one hundred fifteen million, two hundred fifty-nine thousand, eight hundred fifteen".