6981253919999 has 8 divisors (see below), whose sum is σ = 7004099300592. Its totient is φ = 6958411986240.

The previous prime is 6981253919977. The next prime is 6981253920077. The reversal of 6981253919999 is 9999193521896.

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 6981253919999 - 2¹² = 6981253915903 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 (6981253919909) 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, 3227429 + ... + 4937489.

It is an arithmetic number, because the mean of its divisors is an integer number (875512412574).

Almost surely, 2^{6981253919999} is an apocalyptic number.

6981253919999 is a deficient number, since it is larger than the sum of its proper divisors (22845380593).

6981253919999 is a wasteful number, since it uses less digits than its factorization.

6981253919999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723417.

The product of its digits is 765275040, while the sum is 80.

The spelling of 6981253919999 in words is "six trillion, nine hundred eighty-one billion, two hundred fifty-three million, nine hundred nineteen thousand, nine hundred ninety-nine".