3526274976221 has 2 divisors, whose sum is σ = 3526274976222. Its totient is φ = 3526274976220.

The previous prime is 3526274976151. The next prime is 3526274976227. The reversal of 3526274976221 is 1226794726253.

3526274976221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3264273292900 + 262001683321 = 1806730^2 + 511861^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3526274976221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3526274976227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1763137488110 + 1763137488111.

It is an arithmetic number, because the mean of its divisors is an integer number (1763137488111).

Almost surely, 2^{3526274976221} is an apocalyptic number.

It is an amenable number.

3526274976221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3526274976221 is an equidigital number, since it uses as much as digits as its factorization.

3526274976221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15240960, while the sum is 56.

The spelling of 3526274976221 in words is "three trillion, five hundred twenty-six billion, two hundred seventy-four million, nine hundred seventy-six thousand, two hundred twenty-one".