3240491066881 has 4 divisors (see below), whose sum is σ = 3240620056512. Its totient is φ = 3240362077252.

The previous prime is 3240491066861. The next prime is 3240491066893. The reversal of 3240491066881 is 1886601940423.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3240491066881 - 2⁹ = 3240491066369 is a prime.

It is a super-2 number, since 2×3240491066881² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3240491066861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64457125 + ... + 64507378.

It is an arithmetic number, because the mean of its divisors is an integer number (810155014128).

Almost surely, 2^{3240491066881} is an apocalyptic number.

It is an amenable number.

3240491066881 is a deficient number, since it is larger than the sum of its proper divisors (128989631).

3240491066881 is a wasteful number, since it uses less digits than its factorization.

3240491066881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128989630.

The product of its (nonzero) digits is 1990656, while the sum is 52.

The spelling of 3240491066881 in words is "three trillion, two hundred forty billion, four hundred ninety-one million, sixty-six thousand, eight hundred eighty-one".