18914287660 has 12 divisors (see below), whose sum is σ = 39720004128. Its totient is φ = 7565715056.

The previous prime is 18914287657. The next prime is 18914287697. The reversal of 18914287660 is 6678241981.

It is a junction number, because it is equal to n+sod(n) for n = 18914287598 and 18914287607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 472857172 + ... + 472857211.

It is an arithmetic number, because the mean of its divisors is an integer number (3310000344).

Almost surely, 2^18914287660 is an apocalyptic number.

18914287660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18914287660 is an abundant number, since it is smaller than the sum of its proper divisors (20805716468).

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

18914287660 is a wasteful number, since it uses less digits than its factorization.

18914287660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945714392 (or 945714390 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 18914287660 in words is "eighteen billion, nine hundred fourteen million, two hundred eighty-seven thousand, six hundred sixty".