8190995771 has 6 divisors (see below), whose sum is σ = 9528301260. Its totient is φ = 7020853476.

The previous prime is 8190995767. The next prime is 8190995809. The reversal of 8190995771 is 1775990918.

8190995771 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8190995771 - 2² = 8190995767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8190995711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83581541 + ... + 83581638.

It is an arithmetic number, because the mean of its divisors is an integer number (1588050210).

Almost surely, 2^8190995771 is an apocalyptic number.

8190995771 is a deficient number, since it is larger than the sum of its proper divisors (1337305489).

8190995771 is a wasteful number, since it uses less digits than its factorization.

8190995771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167163193 (or 167163186 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 56.

The square root of 8190995771 is about 90504.1201879782. The cubic root of 8190995771 is about 2015.7913034672.

The spelling of 8190995771 in words is "eight billion, one hundred ninety million, nine hundred ninety-five thousand, seven hundred seventy-one".