18854649760 has 48 divisors (see below), whose sum is σ = 44960450976. Its totient is φ = 7471368448.

The previous prime is 18854649739. The next prime is 18854649811. The reversal of 18854649760 is 6794645881.

It is a junction number, because it is equal to n+sod(n) for n = 18854649695 and 18854649704.

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, 533542 + ... + 567781.

It is an arithmetic number, because the mean of its divisors is an integer number (936676062).

Almost surely, 2^18854649760 is an apocalyptic number.

18854649760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18854649760 is an abundant number, since it is smaller than the sum of its proper divisors (26105801216).

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

18854649760 is a wasteful number, since it uses less digits than its factorization.

18854649760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101445 (or 1101437 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 58.

The spelling of 18854649760 in words is "eighteen billion, eight hundred fifty-four million, six hundred forty-nine thousand, seven hundred sixty".