3204329144581 has 2 divisors, whose sum is σ = 3204329144582. Its totient is φ = 3204329144580.

The previous prime is 3204329144579. The next prime is 3204329144591. The reversal of 3204329144581 is 1854419234023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3108024435681 + 96304708900 = 1762959^2 + 310330^2 .

It is a cyclic number.

It is not a de Polignac number, because 3204329144581 - 2¹ = 3204329144579 is a prime.

It is a super-2 number, since 2×3204329144581² (a number of 26 digits) contains 22 as substring.

Together with 3204329144579, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3204329144591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1602164572290 + 1602164572291.

It is an arithmetic number, because the mean of its divisors is an integer number (1602164572291).

Almost surely, 2^{3204329144581} is an apocalyptic number.

It is an amenable number.

3204329144581 is a deficient number, since it is larger than the sum of its proper divisors (1).

3204329144581 is an equidigital number, since it uses as much as digits as its factorization.

3204329144581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 829440, while the sum is 46.

The spelling of 3204329144581 in words is "three trillion, two hundred four billion, three hundred twenty-nine million, one hundred forty-four thousand, five hundred eighty-one".