12826641597 has 32 divisors (see below), whose sum is σ = 21842279424. Its totient is φ = 6500668800.

The previous prime is 12826641571. The next prime is 12826641629. The reversal of 12826641597 is 79514662821.

It is not a de Polignac number, because 12826641597 - 2⁷ = 12826641469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12826641547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 667683 + ... + 686624.

It is an arithmetic number, because the mean of its divisors is an integer number (682571232).

Almost surely, 2^12826641597 is an apocalyptic number.

It is an amenable number.

12826641597 is a deficient number, since it is larger than the sum of its proper divisors (9015637827).

12826641597 is a wasteful number, since it uses less digits than its factorization.

12826641597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354369.

The product of its digits is 1451520, while the sum is 51.

The spelling of 12826641597 in words is "twelve billion, eight hundred twenty-six million, six hundred forty-one thousand, five hundred ninety-seven".