12947137970 has 16 divisors (see below), whose sum is σ = 25097529240. Its totient is φ = 4780481664.

The previous prime is 12947137963. The next prime is 12947137991. The reversal of 12947137970 is 7973174921.

12947137970 is digitally balanced in base 2, 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 9876980689 + 3070157281 = 99383^2 + 55409^2 .

It is a super-2 number, since 2×12947137970² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49796555 + ... + 49796814.

Almost surely, 2^12947137970 is an apocalyptic number.

12947137970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12947137970 is a deficient number, since it is larger than the sum of its proper divisors (12150391270).

12947137970 is a wasteful number, since it uses less digits than its factorization.

12947137970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99593389.

The product of its (nonzero) digits is 666792, while the sum is 50.

The spelling of 12947137970 in words is "twelve billion, nine hundred forty-seven million, one hundred thirty-seven thousand, nine hundred seventy".