12497972697 has 12 divisors (see below), whose sum is σ = 20631574080. Its totient is φ = 7141698648.

The previous prime is 12497972693. The next prime is 12497972699. The reversal of 12497972697 is 79627979421.

12497972697 is a `hidden beast` number, since 12 + 497 + 9 + 72 + 69 + 7 = 666.

It is not a de Polignac number, because 12497972697 - 2² = 12497972693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 198380519 = 12497972697 / (1 + 2 + 4 + 9 + 7 + 9 + 7 + 2 + 6 + 9 + 7).

It is not an unprimeable number, because it can be changed into a prime (12497972693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99190197 + ... + 99190322.

It is an arithmetic number, because the mean of its divisors is an integer number (1719297840).

Almost surely, 2^12497972697 is an apocalyptic number.

It is an amenable number.

12497972697 is a deficient number, since it is larger than the sum of its proper divisors (8133601383).

12497972697 is a wasteful number, since it uses less digits than its factorization.

12497972697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198380532 (or 198380529 counting only the distinct ones).

The product of its digits is 24004512, while the sum is 63.

The spelling of 12497972697 in words is "twelve billion, four hundred ninety-seven million, nine hundred seventy-two thousand, six hundred ninety-seven".