12705839298 has 48 divisors (see below), whose sum is σ = 27833898456. Its totient is φ = 4188487680.

The previous prime is 12705839291. The next prime is 12705839303. The reversal of 12705839298 is 89293850721.

12705839298 is a `hidden beast` number, since 1 + 270 + 5 + 83 + 9 + 298 = 666.

12705839298 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10607558049 + 2098281249 = 102993^2 + 45807^2 .

It is a super-2 number, since 2×12705839298² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12705839291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4176658 + ... + 4179698.

Almost surely, 2^12705839298 is an apocalyptic number.

12705839298 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12705839298 is an abundant number, since it is smaller than the sum of its proper divisors (15128059158).

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

12705839298 is a wasteful number, since it uses less digits than its factorization.

12705839298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5539 (or 5536 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 12705839298 in words is "twelve billion, seven hundred five million, eight hundred thirty-nine thousand, two hundred ninety-eight".