8105642212 has 24 divisors (see below), whose sum is σ = 14995562400. Its totient is φ = 3823027776.

The previous prime is 8105642197. The next prime is 8105642239. The reversal of 8105642212 is 2122465018.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211162 + ... + 246577.

It is an arithmetic number, because the mean of its divisors is an integer number (624815100).

Almost surely, 2^8105642212 is an apocalyptic number.

It is an amenable number.

8105642212 is a deficient number, since it is larger than the sum of its proper divisors (6889920188).

8105642212 is a wasteful number, since it uses less digits than its factorization.

8105642212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457995 (or 457993 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 8105642212 is about 90031.3401655224. The cubic root of 8105642212 is about 2008.7650485136.

The spelling of 8105642212 in words is "eight billion, one hundred five million, six hundred forty-two thousand, two hundred twelve".