3531381855 has 16 divisors (see below), whose sum is σ = 5660154720. Its totient is φ = 1880089088.

The previous prime is 3531381853. The next prime is 3531381859. The reversal of 3531381855 is 5581831353.

It is a cyclic number.

It is not a de Polignac number, because 3531381855 - 2¹ = 3531381853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3531381853) 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 15 ways as a sum of consecutive naturals, for example, 198342 + ... + 215411.

It is an arithmetic number, because the mean of its divisors is an integer number (353759670).

Almost surely, 2^3531381855 is an apocalyptic number.

3531381855 is a deficient number, since it is larger than the sum of its proper divisors (2128772865).

3531381855 is a wasteful number, since it uses less digits than its factorization.

3531381855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414330.

The product of its digits is 216000, while the sum is 42.

The square root of 3531381855 is about 59425.4310459756. The cubic root of 3531381855 is about 1522.8187905065.

The spelling of 3531381855 in words is "three billion, five hundred thirty-one million, three hundred eighty-one thousand, eight hundred fifty-five".