8150686865 has 32 divisors (see below), whose sum is σ = 10078992000. Its totient is φ = 6325337088.

The previous prime is 8150686849. The next prime is 8150686883. The reversal of 8150686865 is 5686860518.

It is a cyclic number.

It is not a de Polignac number, because 8150686865 - 2⁴ = 8150686849 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8077481 + ... + 8078489.

It is an arithmetic number, because the mean of its divisors is an integer number (314968500).

Almost surely, 2^8150686865 is an apocalyptic number.

It is an amenable number.

8150686865 is a deficient number, since it is larger than the sum of its proper divisors (1928305135).

8150686865 is a wasteful number, since it uses less digits than its factorization.

8150686865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409.

The product of its (nonzero) digits is 2764800, while the sum is 53.

The square root of 8150686865 is about 90281.1545395826. The cubic root of 8150686865 is about 2012.4792114412.

The spelling of 8150686865 in words is "eight billion, one hundred fifty million, six hundred eighty-six thousand, eight hundred sixty-five".