4321138764 has 48 divisors (see below), whose sum is σ = 10638190080. Its totient is φ = 1361373120.

The previous prime is 4321138741. The next prime is 4321138817. The reversal of 4321138764 is 4678311234.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76282 + ... + 120254.

It is an arithmetic number, because the mean of its divisors is an integer number (221628960).

Almost surely, 2^4321138764 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 4321138764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5319095040).

4321138764 is an abundant number, since it is smaller than the sum of its proper divisors (6317051316).

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

4321138764 is a wasteful number, since it uses less digits than its factorization.

4321138764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44430 (or 44428 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 4321138764 is about 65735.3692010625. The cubic root of 4321138764 is about 1628.7936629892.

Adding to 4321138764 its reverse (4678311234), we get a palindrome (8999449998).

The spelling of 4321138764 in words is "four billion, three hundred twenty-one million, one hundred thirty-eight thousand, seven hundred sixty-four".