6853400889 has 16 divisors (see below), whose sum is σ = 9193916160. Its totient is φ = 4540959360.

The previous prime is 6853400861. The next prime is 6853400899. The reversal of 6853400889 is 9880043586.

It is not a de Polignac number, because 6853400889 - 2¹⁹ = 6852876601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6853400809) 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, 608469 + ... + 619629.

It is an arithmetic number, because the mean of its divisors is an integer number (574619760).

Almost surely, 2^6853400889 is an apocalyptic number.

It is an amenable number.

6853400889 is a deficient number, since it is larger than the sum of its proper divisors (2340515271).

6853400889 is a wasteful number, since it uses less digits than its factorization.

6853400889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12400.

The product of its (nonzero) digits is 1658880, while the sum is 51.

The square root of 6853400889 is about 82785.2697585748. The cubic root of 6853400889 is about 1899.4828591654.

The spelling of 6853400889 in words is "six billion, eight hundred fifty-three million, four hundred thousand, eight hundred eighty-nine".