12547020000 has 240 divisors, whose sum is σ = 43581262032. Its totient is φ = 3148800000.

The previous prime is 12547019999. The next prime is 12547020019. The reversal of 12547020000 is 2074521.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1013850 + ... + 1026150.

Almost surely, 2^12547020000 is an apocalyptic number.

12547020000 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 12547020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21790631016).

12547020000 is an abundant number, since it is smaller than the sum of its proper divisors (31034242032).

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

12547020000 is a wasteful number, since it uses less digits than its factorization.

12547020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12351 (or 12328 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

Adding to 12547020000 its reverse (2074521), we get a palindrome (12549094521).

The spelling of 12547020000 in words is "twelve billion, five hundred forty-seven million, twenty thousand".