3229553845981 has 2 divisors, whose sum is σ = 3229553845982. Its totient is φ = 3229553845980.

The previous prime is 3229553845927. The next prime is 3229553846039. The reversal of 3229553845981 is 1895483559223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1712148697081 + 1517405148900 = 1308491^2 + 1231830^2 .

It is an emirp because it is prime and its reverse (1895483559223) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3229553845981 - 2²⁵ = 3229520291549 is a prime.

It is a super-2 number, since 2×3229553845981² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3229553845181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1614776922990 + 1614776922991.

It is an arithmetic number, because the mean of its divisors is an integer number (1614776922991).

Almost surely, 2^{3229553845981} is an apocalyptic number.

It is an amenable number.

3229553845981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3229553845981 is an equidigital number, since it uses as much as digits as its factorization.

3229553845981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312000, while the sum is 64.

The spelling of 3229553845981 in words is "three trillion, two hundred twenty-nine billion, five hundred fifty-three million, eight hundred forty-five thousand, nine hundred eighty-one".