18743284012 has 12 divisors (see below), whose sum is σ = 32806322640. Its totient is φ = 9370048976.

The previous prime is 18743284003. The next prime is 18743284013. The reversal of 18743284012 is 21048234781.

It is a super-2 number, since 2×18743284012² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18743284013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371587 + ... + 419002.

It is an arithmetic number, because the mean of its divisors is an integer number (2733860220).

Almost surely, 2^18743284012 is an apocalyptic number.

It is an amenable number.

18743284012 is a deficient number, since it is larger than the sum of its proper divisors (14063038628).

18743284012 is a wasteful number, since it uses less digits than its factorization.

18743284012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796520 (or 796518 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The spelling of 18743284012 in words is "eighteen billion, seven hundred forty-three million, two hundred eighty-four thousand, twelve".