3228780681 has 24 divisors (see below), whose sum is σ = 5365838400. Its totient is φ = 1832629536.

The previous prime is 3228780671. The next prime is 3228780697. The reversal of 3228780681 is 1860878223.

It is not a de Polignac number, because 3228780681 - 2¹⁷ = 3228649609 is a prime.

It is a super-2 number, since 2×3228780681² = 20850049371997647522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3228780601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162595 + ... + 181368.

It is an arithmetic number, because the mean of its divisors is an integer number (223576600).

Almost surely, 2^3228780681 is an apocalyptic number.

It is an amenable number.

3228780681 is a deficient number, since it is larger than the sum of its proper divisors (2137057719).

3228780681 is a wasteful number, since it uses less digits than its factorization.

3228780681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344125 (or 344122 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 3228780681 is about 56822.3607482125. The cubic root of 3228780681 is about 1478.0172928213.

The spelling of 3228780681 in words is "three billion, two hundred twenty-eight million, seven hundred eighty thousand, six hundred eighty-one".