2696865409 has 16 divisors (see below), whose sum is σ = 3143567232. Its totient is φ = 2265614208.

The previous prime is 2696865403. The next prime is 2696865439. The reversal of 2696865409 is 9045686962.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2696865409 - 2³ = 2696865401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2696865409.

It is not an unprimeable number, because it can be changed into a prime (2696865401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413397 + ... + 419869.

It is an arithmetic number, because the mean of its divisors is an integer number (196472952).

Almost surely, 2^2696865409 is an apocalyptic number.

It is an amenable number.

2696865409 is a deficient number, since it is larger than the sum of its proper divisors (446701823).

2696865409 is a wasteful number, since it uses less digits than its factorization.

2696865409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7656.

The product of its (nonzero) digits is 5598720, while the sum is 55.

The square root of 2696865409 is about 51931.3528516252. The cubic root of 2696865409 is about 1391.9375716886.

The spelling of 2696865409 in words is "two billion, six hundred ninety-six million, eight hundred sixty-five thousand, four hundred nine".