3855538355583 has 32 divisors (see below), whose sum is σ = 5207615733760. Its totient is φ = 2537136483840.

The previous prime is 3855538355563. The next prime is 3855538355611.

3855538355583 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 3855538355583 - 2⁵ = 3855538355551 is a prime.

It is a super-2 number, since 2×3855538355583² (a number of 26 digits) 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 (3855538355563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99790113 + ... + 99828741.

It is an arithmetic number, because the mean of its divisors is an integer number (162737991680).

Almost surely, 2^{3855538355583} is an apocalyptic number.

3855538355583 is a deficient number, since it is larger than the sum of its proper divisors (1352077378177).

3855538355583 is a wasteful number, since it uses less digits than its factorization.

3855538355583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40087.

The product of its digits is 648000000, while the sum is 66.

The spelling of 3855538355583 in words is "three trillion, eight hundred fifty-five billion, five hundred thirty-eight million, three hundred fifty-five thousand, five hundred eighty-three".