18782205860 has 24 divisors (see below), whose sum is σ = 43028326656. Its totient is φ = 6829892960.

The previous prime is 18782205857. The next prime is 18782205899. The reversal of 18782205860 is 6850228781.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42686612 + ... + 42687051.

It is an arithmetic number, because the mean of its divisors is an integer number (1792846944).

Almost surely, 2^18782205860 is an apocalyptic number.

18782205860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18782205860 is an abundant number, since it is smaller than the sum of its proper divisors (24246120796).

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

18782205860 is a wasteful number, since it uses less digits than its factorization.

18782205860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85373683 (or 85373681 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 47.

The spelling of 18782205860 in words is "eighteen billion, seven hundred eighty-two million, two hundred five thousand, eight hundred sixty".