12517081200 has 240 divisors, whose sum is σ = 47979116640. Its totient is φ = 3081093120.

The previous prime is 12517081177. The next prime is 12517081201. The reversal of 12517081200 is 218071521.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12517081201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95824 + ... + 184976.

It is an arithmetic number, because the mean of its divisors is an integer number (199912986).

Almost surely, 2^12517081200 is an apocalyptic number.

12517081200 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 12517081200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23989558320).

12517081200 is an abundant number, since it is smaller than the sum of its proper divisors (35462035440).

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

12517081200 is a wasteful number, since it uses less digits than its factorization.

12517081200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89193 (or 89176 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The spelling of 12517081200 in words is "twelve billion, five hundred seventeen million, eighty-one thousand, two hundred".