2605116359 has 4 divisors (see below), whose sum is σ = 2607089760. Its totient is φ = 2603142960.

The previous prime is 2605116323. The next prime is 2605116361. The reversal of 2605116359 is 9536115062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9536115062 = 2 ⋅4768057531.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2605116359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2605116379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 984719 + ... + 987360.

It is an arithmetic number, because the mean of its divisors is an integer number (651772440).

Almost surely, 2^2605116359 is an apocalyptic number.

2605116359 is a deficient number, since it is larger than the sum of its proper divisors (1973401).

2605116359 is a wasteful number, since it uses less digits than its factorization.

2605116359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973400.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 2605116359 is about 51040.3405063093. The cubic root of 2605116359 is about 1375.9702435130.

The spelling of 2605116359 in words is "two billion, six hundred five million, one hundred sixteen thousand, three hundred fifty-nine".