12418999040 has 216 divisors, whose sum is σ = 36112819680. Its totient is φ = 4072341504.

The previous prime is 12418999037. The next prime is 12418999049. The reversal of 12418999040 is 4099981421.

It is not an unprimeable number, because it can be changed into a prime (12418999049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1438256 + ... + 1446864.

It is an arithmetic number, because the mean of its divisors is an integer number (167188980).

Almost surely, 2^12418999040 is an apocalyptic number.

12418999040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12418999040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18056409840).

12418999040 is an abundant number, since it is smaller than the sum of its proper divisors (23693820640).

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

12418999040 is an equidigital number, since it uses as much as digits as its factorization.

12418999040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8667 (or 8646 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 47.

The spelling of 12418999040 in words is "twelve billion, four hundred eighteen million, nine hundred ninety-nine thousand, forty".