8151223868 has 12 divisors (see below), whose sum is σ = 14265459432. Its totient is φ = 4075378320.

The previous prime is 8151223859. The next prime is 8151223879. The reversal of 8151223868 is 8683221518.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37658 + ... + 133118.

It is an arithmetic number, because the mean of its divisors is an integer number (1188788286).

Almost surely, 2^8151223868 is an apocalyptic number.

It is an amenable number.

8151223868 is a deficient number, since it is larger than the sum of its proper divisors (6114235564).

8151223868 is a wasteful number, since it uses less digits than its factorization.

8151223868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116812 (or 116810 counting only the distinct ones).

The product of its digits is 184320, while the sum is 44.

The square root of 8151223868 is about 90284.1285498177. The cubic root of 8151223868 is about 2012.5234074564.

The spelling of 8151223868 in words is "eight billion, one hundred fifty-one million, two hundred twenty-three thousand, eight hundred sixty-eight".