2617864065 has 24 divisors (see below), whose sum is σ = 4554396288. Its totient is φ = 1391035680.

The previous prime is 2617864027. The next prime is 2617864103. The reversal of 2617864065 is 5604687162.

It is an interprime number because it is at equal distance from previous prime (2617864027) and next prime (2617864103).

It is not a de Polignac number, because 2617864065 - 2¹¹ = 2617862017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2617864065.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95139 + ... + 119528.

It is an arithmetic number, because the mean of its divisors is an integer number (189766512).

Almost surely, 2^2617864065 is an apocalyptic number.

It is an amenable number.

2617864065 is a deficient number, since it is larger than the sum of its proper divisors (1936532223).

2617864065 is a wasteful number, since it uses less digits than its factorization.

2617864065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214949 (or 214946 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 2617864065 is about 51165.0668425245. The cubic root of 2617864065 is about 1378.2109535604.

The spelling of 2617864065 in words is "two billion, six hundred seventeen million, eight hundred sixty-four thousand, sixty-five".