8138714664 has 48 divisors (see below), whose sum is σ = 20637704160. Its totient is φ = 2674655200.

The previous prime is 8138714653. The next prime is 8138714669. The reversal of 8138714664 is 4664178318.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8138714669) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 87349 + ... + 154619.

It is an arithmetic number, because the mean of its divisors is an integer number (429952170).

Almost surely, 2^8138714664 is an apocalyptic number.

It is an amenable number.

8138714664 is an abundant number, since it is smaller than the sum of its proper divisors (12498989496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8138714664 is a wasteful number, since it uses less digits than its factorization.

8138714664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67422 (or 67347 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 8138714664 is about 90214.8250788084. The cubic root of 8138714664 is about 2011.4933799215.

The spelling of 8138714664 in words is "eight billion, one hundred thirty-eight million, seven hundred fourteen thousand, six hundred sixty-four".