12897743835 has 8 divisors (see below), whose sum is σ = 20636390160. Its totient is φ = 6878796704.

The previous prime is 12897743819. The next prime is 12897743849. The reversal of 12897743835 is 53834779821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12897743835 - 2⁴ = 12897743819 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429924780 + ... + 429924809.

It is an arithmetic number, because the mean of its divisors is an integer number (2579548770).

Almost surely, 2^12897743835 is an apocalyptic number.

12897743835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12897743835 is a deficient number, since it is larger than the sum of its proper divisors (7738646325).

12897743835 is an equidigital number, since it uses as much as digits as its factorization.

12897743835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859849597.

The product of its digits is 10160640, while the sum is 57.

The spelling of 12897743835 in words is "twelve billion, eight hundred ninety-seven million, seven hundred forty-three thousand, eight hundred thirty-five".