13852531618 has 4 divisors (see below), whose sum is σ = 20778797430. Its totient is φ = 6926265808.

The previous prime is 13852531607. The next prime is 13852531621. The reversal of 13852531618 is 81613525831.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12199865209 + 1652666409 = 110453^2 + 40653^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3463132903 + ... + 3463132906.

Almost surely, 2^13852531618 is an apocalyptic number.

13852531618 is a deficient number, since it is larger than the sum of its proper divisors (6926265812).

13852531618 is an equidigital number, since it uses as much as digits as its factorization.

13852531618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6926265811.

The product of its digits is 172800, while the sum is 43.

The spelling of 13852531618 in words is "thirteen billion, eight hundred fifty-two million, five hundred thirty-one thousand, six hundred eighteen".