8260611917 has 4 divisors (see below), whose sum is σ = 8260849980. Its totient is φ = 8260373856.

The previous prime is 8260611913. The next prime is 8260611949. The reversal of 8260611917 is 7191160628.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8160231556 + 100380361 = 90334^2 + 10019^2 .

It is a cyclic number.

It is not a de Polignac number, because 8260611917 - 2² = 8260611913 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 (8260611913) 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, 55778 + ... + 140115.

It is an arithmetic number, because the mean of its divisors is an integer number (2065212495).

Almost surely, 2^8260611917 is an apocalyptic number.

It is an amenable number.

8260611917 is a deficient number, since it is larger than the sum of its proper divisors (238063).

8260611917 is a wasteful number, since it uses less digits than its factorization.

8260611917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238062.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 8260611917 is about 90887.9085302330. The cubic root of 8260611917 is about 2021.4860088791.

The spelling of 8260611917 in words is "eight billion, two hundred sixty million, six hundred eleven thousand, nine hundred seventeen".