2265713861 has 4 divisors (see below), whose sum is σ = 2265971232. Its totient is φ = 2265456492.

The previous prime is 2265713837. The next prime is 2265713887. The reversal of 2265713861 is 1683175622.

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 2265713861 - 2³⁰ = 1191972037 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 (2265733861) 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, 114995 + ... + 133248.

It is an arithmetic number, because the mean of its divisors is an integer number (566492808).

Almost surely, 2^2265713861 is an apocalyptic number.

It is an amenable number.

2265713861 is a deficient number, since it is larger than the sum of its proper divisors (257371).

2265713861 is an equidigital number, since it uses as much as digits as its factorization.

2265713861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257370.

The product of its digits is 120960, while the sum is 41.

The square root of 2265713861 is about 47599.5153441713. The cubic root of 2265713861 is about 1313.4141389910.

The spelling of 2265713861 in words is "two billion, two hundred sixty-five million, seven hundred thirteen thousand, eight hundred sixty-one".