2865135617 has 4 divisors (see below), whose sum is σ = 2865279936. Its totient is φ = 2864991300.

The previous prime is 2865135607. The next prime is 2865135619. The reversal of 2865135617 is 7165315682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2865135617 - 2⁴ = 2865135601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2865135619) 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, 36509 + ... + 84042.

It is an arithmetic number, because the mean of its divisors is an integer number (716319984).

Almost surely, 2^2865135617 is an apocalyptic number.

It is an amenable number.

2865135617 is a deficient number, since it is larger than the sum of its proper divisors (144319).

2865135617 is a wasteful number, since it uses less digits than its factorization.

2865135617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144318.

The product of its digits is 302400, while the sum is 44.

The square root of 2865135617 is about 53526.9615894644. The cubic root of 2865135617 is about 1420.3053659548.

The spelling of 2865135617 in words is "two billion, eight hundred sixty-five million, one hundred thirty-five thousand, six hundred seventeen".