12397524867 has 48 divisors (see below), whose sum is σ = 22751059968. Its totient is φ = 6328393920.

The previous prime is 12397524863. The next prime is 12397524877. The reversal of 12397524867 is 76842579321.

It is a happy number.

12397524867 is a `hidden beast` number, since 1 + 2 + 39 + 7 + 524 + 86 + 7 = 666.

It is not a de Polignac number, because 12397524867 - 2² = 12397524863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12397524863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 218763 + ... + 269540.

It is an arithmetic number, because the mean of its divisors is an integer number (473980416).

Almost surely, 2^12397524867 is an apocalyptic number.

12397524867 is a deficient number, since it is larger than the sum of its proper divisors (10353535101).

12397524867 is a wasteful number, since it uses less digits than its factorization.

12397524867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488360 (or 488357 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The spelling of 12397524867 in words is "twelve billion, three hundred ninety-seven million, five hundred twenty-four thousand, eight hundred sixty-seven".