13884851556 has 81 divisors (see below), whose sum is σ = 36050003353. Its totient is φ = 4505972160.

The previous prime is 13884851551. The next prime is 13884851557. The reversal of 13884851556 is 65515848831.

The square root of 13884851556 is 117834.

It is a perfect power (a square), and thus also a powerful number.

13884851556 is a `hidden beast` number, since 1 + 3 + 8 + 8 + 4 + 85 + 1 + 556 = 666.

It can be written as a sum of positive squares in only one way, i.e., 669049956 + 13215801600 = 25866^2 + 114960^2 .

It is a super-2 number, since 2×13884851556² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13884851551) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 28986925 + ... + 28987403.

Almost surely, 2^13884851556 is an apocalyptic number.

13884851556 is the 117834-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13884851556

13884851556 is an abundant number, since it is smaller than the sum of its proper divisors (22165151797).

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

13884851556 is an equidigital number, since it uses as much as digits as its factorization.

13884851556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050 (or 525 counting only the distinct ones).

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

It can be divided in two parts, 1388485 and 1556, that added together give a square (1390041 = 1179²).

The spelling of 13884851556 in words is "thirteen billion, eight hundred eighty-four million, eight hundred fifty-one thousand, five hundred fifty-six".