3220807870730 has 32 divisors (see below), whose sum is σ = 6143643631440. Its totient is φ = 1213559226880.

The previous prime is 3220807870729. The next prime is 3220807870783. The reversal of 3220807870730 is 370787080223.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1120479409729 + 2100328461001 = 1058527^2 + 1449251^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135429989 + ... + 135453768.

Almost surely, 2^{3220807870730} is an apocalyptic number.

3220807870730 is a deficient number, since it is larger than the sum of its proper divisors (2922835760710).

3220807870730 is a wasteful number, since it uses less digits than its factorization.

3220807870730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270883834.

The product of its (nonzero) digits is 790272, while the sum is 47.

The spelling of 3220807870730 in words is "three trillion, two hundred twenty billion, eight hundred seven million, eight hundred seventy thousand, seven hundred thirty".