21470614530571 has 2 divisors, whose sum is σ = 21470614530572. Its totient is φ = 21470614530570.

The previous prime is 21470614530557. The next prime is 21470614530581. The reversal of 21470614530571 is 17503541607412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21470614530571 - 2⁵ = 21470614530539 is a prime.

It is not a weakly prime, because it can be changed into another prime (21470614530551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10735307265285 + 10735307265286.

It is an arithmetic number, because the mean of its divisors is an integer number (10735307265286).

Almost surely, 2^{21470614530571} is an apocalyptic number.

21470614530571 is a deficient number, since it is larger than the sum of its proper divisors (1).

21470614530571 is an equidigital number, since it uses as much as digits as its factorization.

21470614530571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 21470614530571 in words is "twenty-one trillion, four hundred seventy billion, six hundred fourteen million, five hundred thirty thousand, five hundred seventy-one".