8108202261 has 4 divisors (see below), whose sum is σ = 10810936352. Its totient is φ = 5405468172.

The previous prime is 8108202229. The next prime is 8108202269. The reversal of 8108202261 is 1622028018.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8108202261 - 2⁵ = 8108202229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8108202269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1351367041 + ... + 1351367046.

It is an arithmetic number, because the mean of its divisors is an integer number (2702734088).

Almost surely, 2^8108202261 is an apocalyptic number.

It is an amenable number.

8108202261 is a deficient number, since it is larger than the sum of its proper divisors (2702734091).

8108202261 is a wasteful number, since it uses less digits than its factorization.

8108202261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2702734090.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 8108202261 is about 90045.5565866523. The cubic root of 8108202261 is about 2008.9765059781.

The spelling of 8108202261 in words is "eight billion, one hundred eight million, two hundred two thousand, two hundred sixty-one".