13197646027 has 4 divisors (see below), whose sum is σ = 13623376576. Its totient is φ = 12771915480.

The previous prime is 13197646003. The next prime is 13197646061. The reversal of 13197646027 is 72064679131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13197646027 - 2⁷ = 13197645899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13197646067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212865228 + ... + 212865289.

It is an arithmetic number, because the mean of its divisors is an integer number (3405844144).

Almost surely, 2^13197646027 is an apocalyptic number.

13197646027 is a deficient number, since it is larger than the sum of its proper divisors (425730549).

13197646027 is an equidigital number, since it uses as much as digits as its factorization.

13197646027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425730548.

The product of its (nonzero) digits is 381024, while the sum is 46.

The spelling of 13197646027 in words is "thirteen billion, one hundred ninety-seven million, six hundred forty-six thousand, twenty-seven".