3513696788221 has 2 divisors, whose sum is σ = 3513696788222. Its totient is φ = 3513696788220.

The previous prime is 3513696788201. The next prime is 3513696788291. The reversal of 3513696788221 is 1228876963153.

It is a happy number.

3513696788221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3431345007321 + 82351780900 = 1852389^2 + 286970^2 .

It is a cyclic number.

It is not a de Polignac number, because 3513696788221 - 2⁷ = 3513696788093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3513696788221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3513696788201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1756848394110 + 1756848394111.

It is an arithmetic number, because the mean of its divisors is an integer number (1756848394111).

Almost surely, 2^{3513696788221} is an apocalyptic number.

It is an amenable number.

3513696788221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3513696788221 is an equidigital number, since it uses as much as digits as its factorization.

3513696788221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26127360, while the sum is 61.

The spelling of 3513696788221 in words is "three trillion, five hundred thirteen billion, six hundred ninety-six million, seven hundred eighty-eight thousand, two hundred twenty-one".