21885704070383 has 2 divisors, whose sum is σ = 21885704070384. Its totient is φ = 21885704070382.

The previous prime is 21885704070367. The next prime is 21885704070407. The reversal of 21885704070383 is 38307040758812.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21885704070383 - 2⁴ = 21885704070367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21885704070283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10942852035191 + 10942852035192.

It is an arithmetic number, because the mean of its divisors is an integer number (10942852035192).

Almost surely, 2^{21885704070383} is an apocalyptic number.

21885704070383 is a deficient number, since it is larger than the sum of its proper divisors (1).

21885704070383 is an equidigital number, since it uses as much as digits as its factorization.

21885704070383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9031680, while the sum is 56.

The spelling of 21885704070383 in words is "twenty-one trillion, eight hundred eighty-five billion, seven hundred four million, seventy thousand, three hundred eighty-three".