12805382802540 has 48 divisors (see below), whose sum is σ = 36095709938400. Its totient is φ = 3391850833920.

The previous prime is 12805382802539. The next prime is 12805382802547. The reversal of 12805382802540 is 4520828350821.

It is a happy number.

12805382802540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12805382802540.

It is not an unprimeable number, because it can be changed into a prime (12805382802547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 716175781 + ... + 716193660.

It is an arithmetic number, because the mean of its divisors is an integer number (751993957050).

Almost surely, 2^{12805382802540} is an apocalyptic number.

12805382802540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12805382802540 is an abundant number, since it is smaller than the sum of its proper divisors (23290327135860).

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

12805382802540 is a wasteful number, since it uses less digits than its factorization.

12805382802540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432369602 (or 1432369600 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 48.

The spelling of 12805382802540 in words is "twelve trillion, eight hundred five billion, three hundred eighty-two million, eight hundred two thousand, five hundred forty".