21361482827 has 2 divisors, whose sum is σ = 21361482828. Its totient is φ = 21361482826.

The previous prime is 21361482803. The next prime is 21361482841. The reversal of 21361482827 is 72828416312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21361482827 - 2¹⁶ = 21361417291 is a prime.

It is not a weakly prime, because it can be changed into another prime (21361482227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10680741413 + 10680741414.

It is an arithmetic number, because the mean of its divisors is an integer number (10680741414).

Almost surely, 2^21361482827 is an apocalyptic number.

21361482827 is a deficient number, since it is larger than the sum of its proper divisors (1).

21361482827 is an equidigital number, since it uses as much as digits as its factorization.

21361482827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 258048, while the sum is 44.

The spelling of 21361482827 in words is "twenty-one billion, three hundred sixty-one million, four hundred eighty-two thousand, eight hundred twenty-seven".