21843334317 has 48 divisors (see below), whose sum is σ = 34710679872. Its totient is φ = 12176398080.

The previous prime is 21843334313. The next prime is 21843334327. The reversal of 21843334317 is 71343334812.

It is not a de Polignac number, because 21843334317 - 2² = 21843334313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21843334313) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6704953 + ... + 6708209.

It is an arithmetic number, because the mean of its divisors is an integer number (723139164).

Almost surely, 2^21843334317 is an apocalyptic number.

It is an amenable number.

21843334317 is a deficient number, since it is larger than the sum of its proper divisors (12867345555).

21843334317 is a wasteful number, since it uses less digits than its factorization.

21843334317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4378 (or 4371 counting only the distinct ones).

The product of its digits is 145152, while the sum is 39.

The spelling of 21843334317 in words is "twenty-one billion, eight hundred forty-three million, three hundred thirty-four thousand, three hundred seventeen".