12945011040 has 288 divisors, whose sum is σ = 48287637216. Its totient is φ = 3138600960.

The previous prime is 12945011033. The next prime is 12945011077. The reversal of 12945011040 is 4011054921.

It is a tau number, because it is divible by the number of its divisors (288).

It is a junction number, because it is equal to n+sod(n) for n = 12945010995 and 12945011013.

It is a congruent number.

It is an unprimeable number.

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, 1249080 + ... + 1259400.

It is an arithmetic number, because the mean of its divisors is an integer number (167665407).

Almost surely, 2^12945011040 is an apocalyptic number.

12945011040 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 12945011040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24143818608).

12945011040 is an abundant number, since it is smaller than the sum of its proper divisors (35342626176).

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

12945011040 is a wasteful number, since it uses less digits than its factorization.

12945011040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10422 (or 10411 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

Adding to 12945011040 its reverse (4011054921), we get a palindrome (16956065961).

The spelling of 12945011040 in words is "twelve billion, nine hundred forty-five million, eleven thousand, forty".