6859904838 has 32 divisors (see below), whose sum is σ = 14731476480. Its totient is φ = 2121813120.

The previous prime is 6859904809. The next prime is 6859904839. The reversal of 6859904838 is 8384099586.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6859904839) 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 15 ways as a sum of consecutive naturals, for example, 466378 + ... + 480861.

It is an arithmetic number, because the mean of its divisors is an integer number (460358640).

Almost surely, 2^6859904838 is an apocalyptic number.

6859904838 is an abundant number, since it is smaller than the sum of its proper divisors (7871571642).

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

6859904838 is a wasteful number, since it uses less digits than its factorization.

6859904838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947332.

The product of its (nonzero) digits is 14929920, while the sum is 60.

The square root of 6859904838 is about 82824.5424859081. The cubic root of 6859904838 is about 1900.0835455415.

The spelling of 6859904838 in words is "six billion, eight hundred fifty-nine million, nine hundred four thousand, eight hundred thirty-eight".