6854028389 has 6 divisors (see below), whose sum is σ = 7421817906. Its totient is φ = 6326795280.

The previous prime is 6854028341. The next prime is 6854028409. The reversal of 6854028389 is 9838204586.

It can be written as a sum of positive squares in 3 ways, for example, as 606390625 + 6247637764 = 24625^2 + 79042^2 .

It is not a de Polignac number, because 6854028389 - 2⁸ = 6854028133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6854028389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6854028689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20278022 + ... + 20278359.

It is an arithmetic number, because the mean of its divisors is an integer number (1236969651).

Almost surely, 2^6854028389 is an apocalyptic number.

It is an amenable number.

6854028389 is a deficient number, since it is larger than the sum of its proper divisors (567789517).

6854028389 is a wasteful number, since it uses less digits than its factorization.

6854028389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40556407 (or 40556394 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 53.

The square root of 6854028389 is about 82789.0595972680. The cubic root of 6854028389 is about 1899.5408298545.

The spelling of 6854028389 in words is "six billion, eight hundred fifty-four million, twenty-eight thousand, three hundred eighty-nine".