21627530341 has 2 divisors, whose sum is σ = 21627530342. Its totient is φ = 21627530340.

The previous prime is 21627530321. The next prime is 21627530371. The reversal of 21627530341 is 14303572612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18320705316 + 3306825025 = 135354^2 + 57505^2 .

It is a cyclic number.

It is not a de Polignac number, because 21627530341 - 2²⁷ = 21493312613 is a prime.

It is a super-3 number, since 3×21627530341³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21627530297 and 21627530306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21627530321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10813765170 + 10813765171.

It is an arithmetic number, because the mean of its divisors is an integer number (10813765171).

Almost surely, 2^21627530341 is an apocalyptic number.

It is an amenable number.

21627530341 is a deficient number, since it is larger than the sum of its proper divisors (1).

21627530341 is an equidigital number, since it uses as much as digits as its factorization.

21627530341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 21627530341 in words is "twenty-one billion, six hundred twenty-seven million, five hundred thirty thousand, three hundred forty-one".