6891891334 has 16 divisors (see below), whose sum is σ = 10362946608. Its totient is φ = 3437586432.

The previous prime is 6891891319. The next prime is 6891891343. The reversal of 6891891334 is 4331981986.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2592534 + ... + 2595190.

It is an arithmetic number, because the mean of its divisors is an integer number (647684163).

Almost surely, 2^6891891334 is an apocalyptic number.

6891891334 is a deficient number, since it is larger than the sum of its proper divisors (3471055274).

6891891334 is a wasteful number, since it uses less digits than its factorization.

6891891334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5319.

The product of its digits is 1119744, while the sum is 52.

The square root of 6891891334 is about 83017.4158475196. The cubic root of 6891891334 is about 1903.0322159206.

The spelling of 6891891334 in words is "six billion, eight hundred ninety-one million, eight hundred ninety-one thousand, three hundred thirty-four".