2640915722 has 8 divisors (see below), whose sum is σ = 3991613472. Its totient is φ = 1310377900.

The previous prime is 2640915721. The next prime is 2640915733. The reversal of 2640915722 is 2275190462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2640915721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5039654 + ... + 5040177.

It is an arithmetic number, because the mean of its divisors is an integer number (498951684).

Almost surely, 2^2640915722 is an apocalyptic number.

2640915722 is a deficient number, since it is larger than the sum of its proper divisors (1350697750).

2640915722 is a wasteful number, since it uses less digits than its factorization.

2640915722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10079964.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 2640915722 is about 51389.8406496848. The cubic root of 2640915722 is about 1382.2444261807.

The spelling of 2640915722 in words is "two billion, six hundred forty million, nine hundred fifteen thousand, seven hundred twenty-two".