21082683148739 has 2 divisors, whose sum is σ = 21082683148740. Its totient is φ = 21082683148738.

The previous prime is 21082683148729. The next prime is 21082683148741. The reversal of 21082683148739 is 93784138628012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21082683148739 is a prime.

Together with 21082683148741, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (21082683148729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10541341574369 + 10541341574370.

It is an arithmetic number, because the mean of its divisors is an integer number (10541341574370).

Almost surely, 2^{21082683148739} is an apocalyptic number.

21082683148739 is a deficient number, since it is larger than the sum of its proper divisors (1).

21082683148739 is an equidigital number, since it uses as much as digits as its factorization.

21082683148739 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27869184, while the sum is 62.

The spelling of 21082683148739 in words is "twenty-one trillion, eighty-two billion, six hundred eighty-three million, one hundred forty-eight thousand, seven hundred thirty-nine".