3331881581 has 8 divisors (see below), whose sum is σ = 3930699264. Its totient is φ = 2763772560.

The previous prime is 3331881551. The next prime is 3331881607. The reversal of 3331881581 is 1851881333.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3331881581 - 2²² = 3327687277 is a prime.

It is a super-2 number, since 2×3331881581² = 22202869739614119122, 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 (3331881521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7676930 + ... + 7677363.

It is an arithmetic number, because the mean of its divisors is an integer number (491337408).

Almost surely, 2^3331881581 is an apocalyptic number.

3331881581 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3331881581 is a deficient number, since it is larger than the sum of its proper divisors (598817683).

3331881581 is a wasteful number, since it uses less digits than its factorization.

3331881581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15354331.

The product of its digits is 69120, while the sum is 41.

The square root of 3331881581 is about 57722.4530057412. The cubic root of 3331881581 is about 1493.5846877017.

The spelling of 3331881581 in words is "three billion, three hundred thirty-one million, eight hundred eighty-one thousand, five hundred eighty-one".