21075793283 has 2 divisors, whose sum is σ = 21075793284. Its totient is φ = 21075793282.

The previous prime is 21075793279. The next prime is 21075793303. The reversal of 21075793283 is 38239757012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21075793283 - 2² = 21075793279 is a prime.

It is not a weakly prime, because it can be changed into another prime (21075793223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10537896641 + 10537896642.

It is an arithmetic number, because the mean of its divisors is an integer number (10537896642).

Almost surely, 2^21075793283 is an apocalyptic number.

21075793283 is a deficient number, since it is larger than the sum of its proper divisors (1).

21075793283 is an equidigital number, since it uses as much as digits as its factorization.

21075793283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 21075793283 in words is "twenty-one billion, seventy-five million, seven hundred ninety-three thousand, two hundred eighty-three".