3359999981 has 16 divisors (see below), whose sum is σ = 3684285360. Its totient is φ = 3045496320.

The previous prime is 3359999947. The next prime is 3360000041. The reversal of 3359999981 is 1899999533.

3359999981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 11526025 + 3348473956 = 3395^2 + 57866^2 .

It is a cyclic number.

It is not a de Polignac number, because 3359999981 - 2⁶ = 3359999917 is a prime.

It is a super-2 number, since 2×3359999981² = 22579199744640000722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3359999081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209591 + ... + 225051.

It is an arithmetic number, because the mean of its divisors is an integer number (230267835).

Almost surely, 2^3359999981 is an apocalyptic number.

It is an amenable number.

3359999981 is a deficient number, since it is larger than the sum of its proper divisors (324285379).

3359999981 is a wasteful number, since it uses less digits than its factorization.

3359999981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15776.

The product of its digits is 21257640, while the sum is 65.

The square root of 3359999981 is about 57965.5068208672. The cubic root of 3359999981 is about 1497.7744746205.

The spelling of 3359999981 in words is "three billion, three hundred fifty-nine million, nine hundred ninety-nine thousand, nine hundred eighty-one".