6845623889 has 8 divisors (see below), whose sum is σ = 7373486400. Its totient is φ = 6317943696.

The previous prime is 6845623879. The next prime is 6845623891. The reversal of 6845623889 is 9883265486.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6845623889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6845623879) 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, 38114 + ... + 123060.

It is an arithmetic number, because the mean of its divisors is an integer number (921685800).

Almost surely, 2^6845623889 is an apocalyptic number.

It is an amenable number.

6845623889 is a deficient number, since it is larger than the sum of its proper divisors (527862511).

6845623889 is a wasteful number, since it uses less digits than its factorization.

6845623889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91159.

The product of its digits is 19906560, while the sum is 59.

The square root of 6845623889 is about 82738.2855091886. The cubic root of 6845623889 is about 1898.7640982830.

The spelling of 6845623889 in words is "six billion, eight hundred forty-five million, six hundred twenty-three thousand, eight hundred eighty-nine".