3229387806491 has 64 divisors (see below), whose sum is σ = 4261659955200. Its totient is φ = 2370762172800.

The previous prime is 3229387806451. The next prime is 3229387806539. The reversal of 3229387806491 is 1946087839223.

It is not a de Polignac number, because 3229387806491 - 2⁶ = 3229387806427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3229387806451) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 470136005 + ... + 470142873.

It is an arithmetic number, because the mean of its divisors is an integer number (66588436800).

Almost surely, 2^{3229387806491} is an apocalyptic number.

3229387806491 is a deficient number, since it is larger than the sum of its proper divisors (1032272148709).

3229387806491 is a wasteful number, since it uses less digits than its factorization.

3229387806491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8640.

The product of its (nonzero) digits is 31352832, while the sum is 62.

The spelling of 3229387806491 in words is "three trillion, two hundred twenty-nine billion, three hundred eighty-seven million, eight hundred six thousand, four hundred ninety-one".