8102204891 has 12 divisors (see below), whose sum is σ = 9051733152. Its totient is φ = 7244886000.

The previous prime is 8102204863. The next prime is 8102204927. The reversal of 8102204891 is 1984022018.

It is not a de Polignac number, because 8102204891 - 2³⁰ = 7028463067 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8102204821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 541475 + ... + 556236.

It is an arithmetic number, because the mean of its divisors is an integer number (754311096).

Almost surely, 2^8102204891 is an apocalyptic number.

8102204891 is a deficient number, since it is larger than the sum of its proper divisors (949528261).

8102204891 is a wasteful number, since it uses less digits than its factorization.

8102204891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097794 (or 1097783 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 8102204891 is about 90012.2485609597. The cubic root of 8102204891 is about 2008.4810592314.

The spelling of 8102204891 in words is "eight billion, one hundred two million, two hundred four thousand, eight hundred ninety-one".