8164739492 has 72 divisors (see below), whose sum is σ = 17741255616. Its totient is φ = 3219225984.

The previous prime is 8164739491. The next prime is 8164739519. The reversal of 8164739492 is 2949374618.

It is not an unprimeable number, because it can be changed into a prime (8164739491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1497323 + ... + 1502765.

It is an arithmetic number, because the mean of its divisors is an integer number (246406328).

Almost surely, 2^8164739492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8164739492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8870627808).

8164739492 is an abundant number, since it is smaller than the sum of its proper divisors (9576516124).

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

8164739492 is a wasteful number, since it uses less digits than its factorization.

8164739492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5797 (or 5782 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 53.

The square root of 8164739492 is about 90358.9480461122. The cubic root of 8164739492 is about 2013.6351214815.

The spelling of 8164739492 in words is "eight billion, one hundred sixty-four million, seven hundred thirty-nine thousand, four hundred ninety-two".