21412461722563 has 2 divisors, whose sum is σ = 21412461722564. Its totient is φ = 21412461722562.

The previous prime is 21412461722551. The next prime is 21412461722621. The reversal of 21412461722563 is 36522716421412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21412461722563 - 2¹⁷ = 21412461591491 is a prime.

It is not a weakly prime, because it can be changed into another prime (21412461222563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10706230861281 + 10706230861282.

It is an arithmetic number, because the mean of its divisors is an integer number (10706230861282).

Almost surely, 2^{21412461722563} is an apocalyptic number.

21412461722563 is a deficient number, since it is larger than the sum of its proper divisors (1).

21412461722563 is an equidigital number, since it uses as much as digits as its factorization.

21412461722563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 46.

The spelling of 21412461722563 in words is "twenty-one trillion, four hundred twelve billion, four hundred sixty-one million, seven hundred twenty-two thousand, five hundred sixty-three".