12781848580 has 24 divisors (see below), whose sum is σ = 26849981592. Its totient is φ = 5111196672.

The previous prime is 12781848557. The next prime is 12781848589. The reversal of 12781848580 is 8584818721.

It can be written as a sum of positive squares in 4 ways, for example, as 1867449796 + 10914398784 = 43214^2 + 104472^2 .

It is not an unprimeable number, because it can be changed into a prime (12781848589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27277 + ... + 162196.

It is an arithmetic number, because the mean of its divisors is an integer number (1118749233).

Almost surely, 2^12781848580 is an apocalyptic number.

12781848580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12781848580 is an abundant number, since it is smaller than the sum of its proper divisors (14068133012).

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

12781848580 is a wasteful number, since it uses less digits than its factorization.

12781848580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192855 (or 192853 counting only the distinct ones).

The product of its (nonzero) digits is 1146880, while the sum is 52.

The spelling of 12781848580 in words is "twelve billion, seven hundred eighty-one million, eight hundred forty-eight thousand, five hundred eighty".