6821923989696 has 112 divisors (see below), whose sum is σ = 18296094512640. Its totient is φ = 2242986071040.

The previous prime is 6821923989659. The next prime is 6821923989697. The reversal of 6821923989696 is 6969893291286.

It is not an unprimeable number, because it can be changed into a prime (6821923989697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15266275 + ... + 15706781.

It is an arithmetic number, because the mean of its divisors is an integer number (163357986720).

Almost surely, 2^{6821923989696} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6821923989696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9148047256320).

6821923989696 is an abundant number, since it is smaller than the sum of its proper divisors (11474170522944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6821923989696 is a wasteful number, since it uses less digits than its factorization.

6821923989696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441622 (or 441612 counting only the distinct ones).

The product of its digits is 1088391168, while the sum is 78.

The spelling of 6821923989696 in words is "six trillion, eight hundred twenty-one billion, nine hundred twenty-three million, nine hundred eighty-nine thousand, six hundred ninety-six".