18854098520 has 32 divisors (see below), whose sum is σ = 42427054800. Its totient is φ = 7540691328.

The previous prime is 18854098511. The next prime is 18854098589. The reversal of 18854098520 is 2589045881.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 353786 + ... + 403574.

Almost surely, 2^18854098520 is an apocalyptic number.

18854098520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18854098520 is an abundant number, since it is smaller than the sum of its proper divisors (23572956280).

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

18854098520 is a wasteful number, since it uses less digits than its factorization.

18854098520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59267 (or 59263 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 50.

The spelling of 18854098520 in words is "eighteen billion, eight hundred fifty-four million, ninety-eight thousand, five hundred twenty".