12543776070 has 96 divisors (see below), whose sum is σ = 35045911008. Its totient is φ = 2865042432.

The previous prime is 12543776039. The next prime is 12543776083. The reversal of 12543776070 is 7067734521.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2933454 + ... + 2937726.

It is an arithmetic number, because the mean of its divisors is an integer number (365061573).

Almost surely, 2^12543776070 is an apocalyptic number.

12543776070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12543776070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17522955504).

12543776070 is an abundant number, since it is smaller than the sum of its proper divisors (22502134938).

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

12543776070 is a wasteful number, since it uses less digits than its factorization.

12543776070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6294 (or 6287 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 42.

The spelling of 12543776070 in words is "twelve billion, five hundred forty-three million, seven hundred seventy-six thousand, seventy".