12197399623 has 8 divisors (see below), whose sum is σ = 12735928080. Its totient is φ = 11666733120.

The previous prime is 12197399611. The next prime is 12197399663. The reversal of 12197399623 is 32699379121.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12197399623 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 (12197399663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1962318 + ... + 1968523.

It is an arithmetic number, because the mean of its divisors is an integer number (1591991010).

Almost surely, 2^12197399623 is an apocalyptic number.

12197399623 is a deficient number, since it is larger than the sum of its proper divisors (538528457).

12197399623 is a wasteful number, since it uses less digits than its factorization.

12197399623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3930977.

The product of its digits is 1102248, while the sum is 52.

The spelling of 12197399623 in words is "twelve billion, one hundred ninety-seven million, three hundred ninety-nine thousand, six hundred twenty-three".