15686113586397 has 16 divisors (see below), whose sum is σ = 21990754672128. Its totient is φ = 9926382305840.

The previous prime is 15686113586393. The next prime is 15686113586441. The reversal of 15686113586397 is 79368531168651.

It is a cyclic number.

It is not a de Polignac number, because 15686113586397 - 2² = 15686113586393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15686113586393) 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 15 ways as a sum of consecutive naturals, for example, 867681723 + ... + 867699800.

It is an arithmetic number, because the mean of its divisors is an integer number (1374422167008).

Almost surely, 2^{15686113586397} is an apocalyptic number.

It is an amenable number.

15686113586397 is a deficient number, since it is larger than the sum of its proper divisors (6304641085731).

15686113586397 is a wasteful number, since it uses less digits than its factorization.

15686113586397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735381680.

The product of its digits is 195955200, while the sum is 69.

The spelling of 15686113586397 in words is "fifteen trillion, six hundred eighty-six billion, one hundred thirteen million, five hundred eighty-six thousand, three hundred ninety-seven".