18293145012 has 36 divisors (see below), whose sum is σ = 47732653696. Its totient is φ = 5901014160.

The previous prime is 18293144999. The next prime is 18293145019. The reversal of 18293145012 is 21054139281.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18293145019) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 8194738 + ... + 8196969.

Almost surely, 2^18293145012 is an apocalyptic number.

18293145012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18293145012 is an abundant number, since it is smaller than the sum of its proper divisors (29439508684).

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

18293145012 is a wasteful number, since it uses less digits than its factorization.

18293145012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16391748 (or 16391743 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 18293145012 in words is "eighteen billion, two hundred ninety-three million, one hundred forty-five thousand, twelve".