15336788491397 has 2 divisors, whose sum is σ = 15336788491398. Its totient is φ = 15336788491396.

The previous prime is 15336788491379. The next prime is 15336788491421. The reversal of 15336788491397 is 79319488763351.

Together with previous prime (15336788491379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8898521675521 + 6438266815876 = 2983039^2 + 2537374^2 .

It is an emirp because it is prime and its reverse (79319488763351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15336788491397 - 2¹² = 15336788487301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15336788491097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7668394245698 + 7668394245699.

It is an arithmetic number, because the mean of its divisors is an integer number (7668394245699).

Almost surely, 2^{15336788491397} is an apocalyptic number.

It is an amenable number.

15336788491397 is a deficient number, since it is larger than the sum of its proper divisors (1).

15336788491397 is an equidigital number, since it uses as much as digits as its factorization.

15336788491397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 823011840, while the sum is 74.

The spelling of 15336788491397 in words is "fifteen trillion, three hundred thirty-six billion, seven hundred eighty-eight million, four hundred ninety-one thousand, three hundred ninety-seven".