2640652115 has 4 divisors (see below), whose sum is σ = 3168782544. Its totient is φ = 2112521688.

The previous prime is 2640652087. The next prime is 2640652117. The reversal of 2640652115 is 5112560462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2640652115 - 2⁶ = 2640652051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2640652117) 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 3 ways as a sum of consecutive naturals, for example, 264065207 + ... + 264065216.

It is an arithmetic number, because the mean of its divisors is an integer number (792195636).

Almost surely, 2^2640652115 is an apocalyptic number.

2640652115 is a deficient number, since it is larger than the sum of its proper divisors (528130429).

2640652115 is an equidigital number, since it uses as much as digits as its factorization.

2640652115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528130428.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 2640652115 is about 51387.2758083166. The cubic root of 2640652115 is about 1382.1984343772.

The spelling of 2640652115 in words is "two billion, six hundred forty million, six hundred fifty-two thousand, one hundred fifteen".