8391564014 has 8 divisors (see below), whose sum is σ = 12587777400. Its totient is φ = 4195638216.

The previous prime is 8391564001. The next prime is 8391564019. The reversal of 8391564014 is 4104651938.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8391564019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29852 + ... + 132944.

It is an arithmetic number, because the mean of its divisors is an integer number (1573472175).

Almost surely, 2^8391564014 is an apocalyptic number.

8391564014 is a deficient number, since it is larger than the sum of its proper divisors (4196213386).

8391564014 is a wasteful number, since it uses less digits than its factorization.

8391564014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143794.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 8391564014 is about 91605.4802618271. The cubic root of 8391564014 is about 2032.1119852658. Note that the first 3 decimals are identical.

The spelling of 8391564014 in words is "eight billion, three hundred ninety-one million, five hundred sixty-four thousand, fourteen".