12197789413 has 4 divisors (see below), whose sum is σ = 12198299328. Its totient is φ = 12197279500.

The previous prime is 12197789411. The next prime is 12197789431. The reversal of 12197789413 is 31498779121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12197789413 - 2¹ = 12197789411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12197789411) 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, 217213 + ... + 267538.

It is an arithmetic number, because the mean of its divisors is an integer number (3049574832).

Almost surely, 2^12197789413 is an apocalyptic number.

It is an amenable number.

12197789413 is a deficient number, since it is larger than the sum of its proper divisors (509915).

12197789413 is an equidigital number, since it uses as much as digits as its factorization.

12197789413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509914.

The product of its digits is 762048, while the sum is 52.

The spelling of 12197789413 in words is "twelve billion, one hundred ninety-seven million, seven hundred eighty-nine thousand, four hundred thirteen".