6866725839 has 8 divisors (see below), whose sum is σ = 9159394992. Its totient is φ = 4575936960.

The previous prime is 6866725829. The next prime is 6866725843. The reversal of 6866725839 is 9385276686.

It is a happy number.

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

It is not a de Polignac number, because 6866725839 - 2⁵ = 6866725807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6866725819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461524 + ... + 476169.

It is an arithmetic number, because the mean of its divisors is an integer number (1144924374).

Almost surely, 2^6866725839 is an apocalyptic number.

6866725839 is a deficient number, since it is larger than the sum of its proper divisors (2292669153).

6866725839 is a wasteful number, since it uses less digits than its factorization.

6866725839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940137.

The product of its digits is 26127360, while the sum is 60.

The square root of 6866725839 is about 82865.7096693198. The cubic root of 6866725839 is about 1900.7131061931.

The spelling of 6866725839 in words is "six billion, eight hundred sixty-six million, seven hundred twenty-five thousand, eight hundred thirty-nine".