12784601380 has 12 divisors (see below), whose sum is σ = 26847662940. Its totient is φ = 5113840544.

The previous prime is 12784601371. The next prime is 12784601411. The reversal of 12784601380 is 8310648721.

It can be written as a sum of positive squares in 2 ways, for example, as 9082852416 + 3701748964 = 95304^2 + 60842^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319615015 + ... + 319615054.

It is an arithmetic number, because the mean of its divisors is an integer number (2237305245).

Almost surely, 2^12784601380 is an apocalyptic number.

12784601380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12784601380 is an abundant number, since it is smaller than the sum of its proper divisors (14063061560).

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

12784601380 is a wasteful number, since it uses less digits than its factorization.

12784601380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639230078 (or 639230076 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 12784601380 in words is "twelve billion, seven hundred eighty-four million, six hundred one thousand, three hundred eighty".