12897110954 has 36 divisors (see below), whose sum is σ = 24368422374. Its totient is φ = 5102147232.

The previous prime is 12897110953. The next prime is 12897111037. The reversal of 12897110954 is 45901179821.

It can be written as a sum of positive squares in 3 ways, for example, as 7810140625 + 5086970329 = 88375^2 + 71323^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12897110899 and 12897110908.

It is not an unprimeable number, because it can be changed into a prime (12897110953) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 372797 + ... + 405920.

Almost surely, 2^12897110954 is an apocalyptic number.

12897110954 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12897110954 is a deficient number, since it is larger than the sum of its proper divisors (11471311420).

12897110954 is a wasteful number, since it uses less digits than its factorization.

12897110954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778759 (or 778739 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 47.

The spelling of 12897110954 in words is "twelve billion, eight hundred ninety-seven million, one hundred ten thousand, nine hundred fifty-four".