3325811381 has 4 divisors (see below), whose sum is σ = 3328614432. Its totient is φ = 3323008332.

The previous prime is 3325811369. The next prime is 3325811387. The reversal of 3325811381 is 1831185233.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1831185233 = 211 ⋅8678603.

It is a cyclic number.

It is not a de Polignac number, because 3325811381 - 2¹⁰ = 3325810357 is a prime.

It is a super-2 number, since 2×3325811381² = 22122042683978254322, 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 (3325811387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1399745 + ... + 1402118.

It is an arithmetic number, because the mean of its divisors is an integer number (832153608).

Almost surely, 2^3325811381 is an apocalyptic number.

It is an amenable number.

3325811381 is a deficient number, since it is larger than the sum of its proper divisors (2803051).

3325811381 is a wasteful number, since it uses less digits than its factorization.

3325811381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803050.

The product of its digits is 17280, while the sum is 35.

The square root of 3325811381 is about 57669.8481097358. The cubic root of 3325811381 is about 1492.6771055054.

The spelling of 3325811381 in words is "three billion, three hundred twenty-five million, eight hundred eleven thousand, three hundred eighty-one".