18852155157 has 16 divisors (see below), whose sum is σ = 27507834432. Its totient is φ = 11389499520.

The previous prime is 18852155149. The next prime is 18852155191. The reversal of 18852155157 is 75155125881.

It is not a de Polignac number, because 18852155157 - 2³ = 18852155149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18852155107) 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 15 ways as a sum of consecutive naturals, for example, 890608 + ... + 911529.

It is an arithmetic number, because the mean of its divisors is an integer number (1719239652).

Almost surely, 2^18852155157 is an apocalyptic number.

It is an amenable number.

18852155157 is a deficient number, since it is larger than the sum of its proper divisors (8655679275).

18852155157 is a wasteful number, since it uses less digits than its factorization.

18852155157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802468.

The product of its digits is 560000, while the sum is 48.

The spelling of 18852155157 in words is "eighteen billion, eight hundred fifty-two million, one hundred fifty-five thousand, one hundred fifty-seven".