2642191815 has 64 divisors (see below), whose sum is σ = 4489592832. Its totient is φ = 1324224000.

The previous prime is 2642191801. The next prime is 2642191829. The reversal of 2642191815 is 5181912462.

It is an interprime number because it is at equal distance from previous prime (2642191801) and next prime (2642191829).

It is not a de Polignac number, because 2642191815 - 2⁷ = 2642191687 is a prime.

Its product of digits (34560) is a multiple of the sum of its prime divisors (720).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6655197 + ... + 6655593.

It is an arithmetic number, because the mean of its divisors is an integer number (70149888).

Almost surely, 2^2642191815 is an apocalyptic number.

2642191815 is a deficient number, since it is larger than the sum of its proper divisors (1847401017).

2642191815 is a wasteful number, since it uses less digits than its factorization.

2642191815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720.

The product of its digits is 34560, while the sum is 39.

The square root of 2642191815 is about 51402.2549602641. The cubic root of 2642191815 is about 1382.4670242738.

The spelling of 2642191815 in words is "two billion, six hundred forty-two million, one hundred ninety-one thousand, eight hundred fifteen".