8197705761 has 16 divisors (see below), whose sum is σ = 12922492800. Its totient is φ = 4522871808.

The previous prime is 8197705753. The next prime is 8197705771. The reversal of 8197705761 is 1675077918.

It is not a de Polignac number, because 8197705761 - 2³ = 8197705753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8197705771) 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, 6729856 + ... + 6731073.

It is an arithmetic number, because the mean of its divisors is an integer number (807655800).

Almost surely, 2^8197705761 is an apocalyptic number.

It is an amenable number.

8197705761 is a deficient number, since it is larger than the sum of its proper divisors (4724787039).

8197705761 is a wasteful number, since it uses less digits than its factorization.

8197705761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13460968.

The product of its (nonzero) digits is 740880, while the sum is 51.

The square root of 8197705761 is about 90541.1826794857. The cubic root of 8197705761 is about 2016.3415925938.

The spelling of 8197705761 in words is "eight billion, one hundred ninety-seven million, seven hundred five thousand, seven hundred sixty-one".