18343415412 has 96 divisors (see below), whose sum is σ = 57548010240. Its totient is φ = 4932679680.

The previous prime is 18343415407. The next prime is 18343415417. The reversal of 18343415412 is 21451434381.

18343415412 is a `hidden beast` number, since 1 + 83 + 4 + 34 + 1 + 541 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (18343415407) and next prime (18343415417).

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 (18343415417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 700789 + ... + 726492.

It is an arithmetic number, because the mean of its divisors is an integer number (599458440).

Almost surely, 2^18343415412 is an apocalyptic number.

18343415412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18343415412 is an abundant number, since it is smaller than the sum of its proper divisors (39204594828).

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

18343415412 is a wasteful number, since it uses less digits than its factorization.

18343415412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427318 (or 1427310 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

Adding to 18343415412 its reverse (21451434381), we get a palindrome (39794849793).

The spelling of 18343415412 in words is "eighteen billion, three hundred forty-three million, four hundred fifteen thousand, four hundred twelve".