6854860139 has 16 divisors (see below), whose sum is σ = 7289732736. Its totient is φ = 6423580800.

The previous prime is 6854860087. The next prime is 6854860171. The reversal of 6854860139 is 9310684586.

It is a cyclic number.

It is not a de Polignac number, because 6854860139 - 2⁸ = 6854859883 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (6854860339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5309084 + ... + 5310374.

It is an arithmetic number, because the mean of its divisors is an integer number (455608296).

Almost surely, 2^6854860139 is an apocalyptic number.

6854860139 is a deficient number, since it is larger than the sum of its proper divisors (434872597).

6854860139 is a wasteful number, since it uses less digits than its factorization.

6854860139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The square root of 6854860139 is about 82794.0827535398. The cubic root of 6854860139 is about 1899.6176644346.

The spelling of 6854860139 in words is "six billion, eight hundred fifty-four million, eight hundred sixty thousand, one hundred thirty-nine".