2623242665 has 8 divisors (see below), whose sum is σ = 3149249928. Its totient is φ = 2097688320.

The previous prime is 2623242659. The next prime is 2623242691. The reversal of 2623242665 is 5662423262.

It can be written as a sum of positive squares in 4 ways, for example, as 522945424 + 2100297241 = 22868^2 + 45829^2 .

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

It is not a de Polignac number, because 2623242665 - 2²⁰ = 2622194089 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100352 + ... + 123761.

It is an arithmetic number, because the mean of its divisors is an integer number (393656241).

Almost surely, 2^2623242665 is an apocalyptic number.

It is an amenable number.

2623242665 is a deficient number, since it is larger than the sum of its proper divisors (526007263).

2623242665 is a wasteful number, since it uses less digits than its factorization.

2623242665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226459.

The product of its digits is 207360, while the sum is 38.

The square root of 2623242665 is about 51217.6011250039. The cubic root of 2623242665 is about 1379.1541874701.

The spelling of 2623242665 in words is "two billion, six hundred twenty-three million, two hundred forty-two thousand, six hundred sixty-five".