6981889823 has 8 divisors (see below), whose sum is σ = 7009631136. Its totient is φ = 6954169600.

The previous prime is 6981889819. The next prime is 6981889861. The reversal of 6981889823 is 3289881896.

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

It is a cyclic number.

It is not a de Polignac number, because 6981889823 - 2² = 6981889819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6981829823) by changing a digit.

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, 1095815 + ... + 1102167.

It is an arithmetic number, because the mean of its divisors is an integer number (876203892).

Almost surely, 2^6981889823 is an apocalyptic number.

6981889823 is a deficient number, since it is larger than the sum of its proper divisors (27741313).

6981889823 is a wasteful number, since it uses less digits than its factorization.

6981889823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10545.

The product of its digits is 11943936, while the sum is 62.

The square root of 6981889823 is about 83557.7035526946. The cubic root of 6981889823 is about 1911.2800665090.

The spelling of 6981889823 in words is "six billion, nine hundred eighty-one million, eight hundred eighty-nine thousand, eight hundred twenty-three".