6839390742 has 8 divisors (see below), whose sum is σ = 13678781496. Its totient is φ = 2279796912.

The previous prime is 6839390729. The next prime is 6839390749. The reversal of 6839390742 is 2470939386.

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

6839390742 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6839390749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569949223 + ... + 569949234.

It is an arithmetic number, because the mean of its divisors is an integer number (1709847687).

Almost surely, 2^6839390742 is an apocalyptic number.

6839390742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6839390742 is a wasteful number, since it uses less digits than its factorization.

6839390742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139898462.

The product of its (nonzero) digits is 1959552, while the sum is 51.

The square root of 6839390742 is about 82700.6090787728. The cubic root of 6839390742 is about 1898.1876292921.

The spelling of 6839390742 in words is "six billion, eight hundred thirty-nine million, three hundred ninety thousand, seven hundred forty-two".