21707408832683 has 24 divisors (see below), whose sum is σ = 25164971969280. Its totient is φ = 18342708426000.

The previous prime is 21707408832539. The next prime is 21707408832731. The reversal of 21707408832683 is 38623880470712.

It is not a de Polignac number, because 21707408832683 - 2¹⁶ = 21707408767147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21707408832983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 605471708 + ... + 605507558.

It is an arithmetic number, because the mean of its divisors is an integer number (1048540498720).

Almost surely, 2^{21707408832683} is an apocalyptic number.

21707408832683 is a deficient number, since it is larger than the sum of its proper divisors (3457563136597).

21707408832683 is an equidigital number, since it uses as much as digits as its factorization.

21707408832683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53159 (or 53088 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 59.

The spelling of 21707408832683 in words is "twenty-one trillion, seven hundred seven billion, four hundred eight million, eight hundred thirty-two thousand, six hundred eighty-three".