21889683983 has 2 divisors, whose sum is σ = 21889683984. Its totient is φ = 21889683982.

The previous prime is 21889683941. The next prime is 21889684013. The reversal of 21889683983 is 38938698812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21889683983 - 2⁸ = 21889683727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21889683083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10944841991 + 10944841992.

It is an arithmetic number, because the mean of its divisors is an integer number (10944841992).

Almost surely, 2^21889683983 is an apocalyptic number.

21889683983 is a deficient number, since it is larger than the sum of its proper divisors (1).

21889683983 is an equidigital number, since it uses as much as digits as its factorization.

21889683983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35831808, while the sum is 65.

The spelling of 21889683983 in words is "twenty-one billion, eight hundred eighty-nine million, six hundred eighty-three thousand, nine hundred eighty-three".