18893155853 has 32 divisors (see below), whose sum is σ = 23613835392. Its totient is φ = 14850662400.

The previous prime is 18893155847. The next prime is 18893155861. The reversal of 18893155853 is 35855139881.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 18893155853 - 2¹² = 18893151757 is a prime.

It is a super-3 number, since 3×18893155853³ (a number of 32 digits) contains 333 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 (18893155823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 494525 + ... + 531357.

It is an arithmetic number, because the mean of its divisors is an integer number (737932356).

Almost surely, 2^18893155853 is an apocalyptic number.

18893155853 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18893155853 is a deficient number, since it is larger than the sum of its proper divisors (4720679539).

18893155853 is a wasteful number, since it uses less digits than its factorization.

18893155853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37085.

The product of its digits is 5184000, while the sum is 56.

The spelling of 18893155853 in words is "eighteen billion, eight hundred ninety-three million, one hundred fifty-five thousand, eight hundred fifty-three".