3325811381028 has 36 divisors (see below), whose sum is σ = 8418904907868. Its totient is φ = 1107022324800.

The previous prime is 3325811380967. The next prime is 3325811381029. The reversal of 3325811381028 is 8201831185233.

3325811381028 is a `hidden beast` number, since 3 + 3 + 2 + 581 + 1 + 38 + 10 + 28 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1053562650624 + 2272248730404 = 1026432^2 + 1507398^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×3325811381028² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3325811381029) 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 11 ways as a sum of consecutive naturals, for example, 65868951 + ... + 65919422.

It is an arithmetic number, because the mean of its divisors is an integer number (233858469663).

Almost surely, 2^{3325811381028} is an apocalyptic number.

It is an amenable number.

3325811381028 is an abundant number, since it is smaller than the sum of its proper divisors (5093093526840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3325811381028 is a wasteful number, since it uses less digits than its factorization.

3325811381028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131789084 (or 131789079 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 3325811381028 in words is "three trillion, three hundred twenty-five billion, eight hundred eleven million, three hundred eighty-one thousand, twenty-eight".