8866849761 has 160 divisors (see below), whose sum is σ = 17416194048. Its totient is φ = 4358914560.

The previous prime is 8866849753. The next prime is 8866849801. The reversal of 8866849761 is 1679486688.

8866849761 is a `hidden beast` number, since 8 + 86 + 6 + 8 + 497 + 61 = 666.

It is not a de Polignac number, because 8866849761 - 2³ = 8866849753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (8866849361) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 16209690 + ... + 16210236.

Almost surely, 2^8866849761 is an apocalyptic number.

8866849761 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

8866849761 is a deficient number, since it is larger than the sum of its proper divisors (8549344287).

8866849761 is a wasteful number, since it uses less digits than its factorization.

8866849761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713 (or 704 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 63.

The square root of 8866849761 is about 94163.9514941891. The cubic root of 8866849761 is about 2069.7749030595.

The spelling of 8866849761 in words is "eight billion, eight hundred sixty-six million, eight hundred forty-nine thousand, seven hundred sixty-one".