18345202700412 has 192 divisors, whose sum is σ = 49570219532288. Its totient is φ = 5172400800000.

The previous prime is 18345202700369. The next prime is 18345202700509. The reversal of 18345202700412 is 21400720254381.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2412886203 + ... + 2412893805.

Almost surely, 2^{18345202700412} is an apocalyptic number.

18345202700412 is a gapful number since it is divisible by the number (12) 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 18345202700412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24785109766144).

18345202700412 is an abundant number, since it is smaller than the sum of its proper divisors (31225016831876).

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

18345202700412 is a wasteful number, since it uses less digits than its factorization.

18345202700412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9000 (or 8998 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

Adding to 18345202700412 its reverse (21400720254381), we get a palindrome (39745922954793).

The spelling of 18345202700412 in words is "eighteen trillion, three hundred forty-five billion, two hundred two million, seven hundred thousand, four hundred twelve".