12719669697 has 48 divisors (see below), whose sum is σ = 21118456320. Its totient is φ = 7226672256.

The previous prime is 12719669657. The next prime is 12719669701. The reversal of 12719669697 is 79696691721.

It is not a de Polignac number, because 12719669697 - 2³² = 8424702401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (12719669617) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12241704 + ... + 12242742.

It is an arithmetic number, because the mean of its divisors is an integer number (439967840).

Almost surely, 2^12719669697 is an apocalyptic number.

It is an amenable number.

12719669697 is a deficient number, since it is larger than the sum of its proper divisors (8398786623).

12719669697 is a wasteful number, since it uses less digits than its factorization.

12719669697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982 (or 1979 counting only the distinct ones).

The product of its digits is 15431472, while the sum is 63.

The spelling of 12719669697 in words is "twelve billion, seven hundred nineteen million, six hundred sixty-nine thousand, six hundred ninety-seven".