2602668609 has 6 divisors (see below), whose sum is σ = 3759410226. Its totient is φ = 1735112400.

The previous prime is 2602668589. The next prime is 2602668619. The reversal of 2602668609 is 9068662062.

It can be written as a sum of positive squares in only one way, i.e., 2602530225 + 138384 = 51015^2 + 372^2 .

It is not a de Polignac number, because 2602668609 - 2⁵ = 2602668577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2602668619) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144592692 + ... + 144592709.

It is an arithmetic number, because the mean of its divisors is an integer number (626568371).

Almost surely, 2^2602668609 is an apocalyptic number.

It is an amenable number.

2602668609 is a deficient number, since it is larger than the sum of its proper divisors (1156741617).

2602668609 is a wasteful number, since it uses less digits than its factorization.

2602668609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289185407 (or 289185404 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 2602668609 is about 51016.3562889393. The cubic root of 2602668609 is about 1375.5391576406.

The spelling of 2602668609 in words is "two billion, six hundred two million, six hundred sixty-eight thousand, six hundred nine".