8381853855 has 48 divisors (see below), whose sum is σ = 14660309664. Its totient is φ = 4429900800.

The previous prime is 8381853817. The next prime is 8381853869. The reversal of 8381853855 is 5583581838.

8381853855 is a `hidden beast` number, since 83 + 8 + 185 + 385 + 5 = 666.

It is not a de Polignac number, because 8381853855 - 2¹⁵ = 8381821087 is a prime.

It is a super-2 number, since 2×8381853855² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5775880 + ... + 5777330.

It is an arithmetic number, because the mean of its divisors is an integer number (305423118).

Almost surely, 2^8381853855 is an apocalyptic number.

8381853855 is a deficient number, since it is larger than the sum of its proper divisors (6278455809).

8381853855 is a wasteful number, since it uses less digits than its factorization.

8381853855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2536 (or 2533 counting only the distinct ones).

The product of its digits is 4608000, while the sum is 54.

The square root of 8381853855 is about 91552.4650405438. The cubic root of 8381853855 is about 2031.3278745308.

The spelling of 8381853855 in words is "eight billion, three hundred eighty-one million, eight hundred fifty-three thousand, eight hundred fifty-five".