6839391330 has 80 divisors (see below), whose sum is σ = 18408168504. Its totient is φ = 1822072320.

The previous prime is 6839391323. The next prime is 6839391341. The reversal of 6839391330 is 331939386.

It can be written as a sum of positive squares in 4 ways, for example, as 4633116489 + 2206274841 = 68067^2 + 46971^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 979050 + ... + 986010.

Almost surely, 2^6839391330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6839391330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9204084252).

6839391330 is an abundant number, since it is smaller than the sum of its proper divisors (11568777174).

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

6839391330 is a wasteful number, since it uses less digits than its factorization.

6839391330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8193 (or 8184 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 45.

The square root of 6839391330 is about 82700.6126337647. The cubic root of 6839391330 is about 1898.1876836895.

The spelling of 6839391330 in words is "six billion, eight hundred thirty-nine million, three hundred ninety-one thousand, three hundred thirty".