12271750780 has 96 divisors (see below), whose sum is σ = 28821844800. Its totient is φ = 4368494592.

The previous prime is 12271750769. The next prime is 12271750787. The reversal of 12271750780 is 8705717221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12271750787) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 392692 + ... + 422788.

It is an arithmetic number, because the mean of its divisors is an integer number (300227550).

Almost surely, 2^12271750780 is an apocalyptic number.

12271750780 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 12271750780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14410922400).

12271750780 is an abundant number, since it is smaller than the sum of its proper divisors (16550094020).

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

12271750780 is a wasteful number, since it uses less digits than its factorization.

12271750780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30191 (or 30189 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 40.

The spelling of 12271750780 in words is "twelve billion, two hundred seventy-one million, seven hundred fifty thousand, seven hundred eighty".