21759541283 has 2 divisors, whose sum is σ = 21759541284. Its totient is φ = 21759541282.

The previous prime is 21759541267. The next prime is 21759541313. The reversal of 21759541283 is 38214595712.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21759541283 - 2⁴ = 21759541267 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (21759541183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10879770641 + 10879770642.

It is an arithmetic number, because the mean of its divisors is an integer number (10879770642).

Almost surely, 2^21759541283 is an apocalyptic number.

21759541283 is a deficient number, since it is larger than the sum of its proper divisors (1).

21759541283 is an equidigital number, since it uses as much as digits as its factorization.

21759541283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 47.

The spelling of 21759541283 in words is "twenty-one billion, seven hundred fifty-nine million, five hundred forty-one thousand, two hundred eighty-three".