3205601021409 has 12 divisors (see below), whose sum is σ = 4375844776656. Its totient is φ = 2087368103352.

The previous prime is 3205601021393. The next prime is 3205601021417. The reversal of 3205601021409 is 9041201065023.

It is not a de Polignac number, because 3205601021409 - 2⁴ = 3205601021393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3205601021409.

It is not an unprimeable number, because it can be changed into a prime (3205601021489) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 288943527 + ... + 288954620.

It is an arithmetic number, because the mean of its divisors is an integer number (364653731388).

Almost surely, 2^{3205601021409} is an apocalyptic number.

It is an amenable number.

3205601021409 is a deficient number, since it is larger than the sum of its proper divisors (1170243755247).

3205601021409 is an equidigital number, since it uses as much as digits as its factorization.

3205601021409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577898236 (or 577898193 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The spelling of 3205601021409 in words is "three trillion, two hundred five billion, six hundred one million, twenty-one thousand, four hundred nine".