2642887915 has 16 divisors (see below), whose sum is σ = 3363904512. Its totient is φ = 1986453504.

The previous prime is 2642887913. The next prime is 2642887931. The reversal of 2642887915 is 5197882462.

It is a cyclic number.

It is not a de Polignac number, because 2642887915 - 2¹ = 2642887913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2642887913) 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 15 ways as a sum of consecutive naturals, for example, 22102 + ... + 75988.

It is an arithmetic number, because the mean of its divisors is an integer number (210244032).

Almost surely, 2^2642887915 is an apocalyptic number.

2642887915 is a deficient number, since it is larger than the sum of its proper divisors (721016597).

2642887915 is a wasteful number, since it uses less digits than its factorization.

2642887915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54486.

The product of its digits is 1935360, while the sum is 52.

The square root of 2642887915 is about 51409.0256180761. The cubic root of 2642887915 is about 1382.5884198000.

The spelling of 2642887915 in words is "two billion, six hundred forty-two million, eight hundred eighty-seven thousand, nine hundred fifteen".