8691366761 has 16 divisors (see below), whose sum is σ = 10891013760. Its totient is φ = 6738103680.

The previous prime is 8691366757. The next prime is 8691366791. The reversal of 8691366761 is 1676631968.

It is not a de Polignac number, because 8691366761 - 2² = 8691366757 is a prime.

It is a super-2 number, since 2×8691366761² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8691366791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271316 + ... + 301653.

It is an arithmetic number, because the mean of its divisors is an integer number (680688360).

Almost surely, 2^8691366761 is an apocalyptic number.

It is an amenable number.

8691366761 is a deficient number, since it is larger than the sum of its proper divisors (2199646999).

8691366761 is a wasteful number, since it uses less digits than its factorization.

8691366761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573184.

The product of its digits is 1959552, while the sum is 53.

The square root of 8691366761 is about 93227.5000254753. The cubic root of 8691366761 is about 2056.0295818573.

The spelling of 8691366761 in words is "eight billion, six hundred ninety-one million, three hundred sixty-six thousand, seven hundred sixty-one".