6891428323 has 4 divisors (see below), whose sum is σ = 7421538208. Its totient is φ = 6361318440.

The previous prime is 6891428293. The next prime is 6891428339. The reversal of 6891428323 is 3238241986.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6891428323 - 2⁹ = 6891427811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6891428623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265054923 + ... + 265054948.

It is an arithmetic number, because the mean of its divisors is an integer number (1855384552).

Almost surely, 2^6891428323 is an apocalyptic number.

6891428323 is a deficient number, since it is larger than the sum of its proper divisors (530109885).

6891428323 is a wasteful number, since it uses less digits than its factorization.

6891428323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530109884.

The product of its digits is 497664, while the sum is 46.

The square root of 6891428323 is about 83014.6271629283. The cubic root of 6891428323 is about 1902.9895984668.

The spelling of 6891428323 in words is "six billion, eight hundred ninety-one million, four hundred twenty-eight thousand, three hundred twenty-three".