15697271111479 has 2 divisors, whose sum is σ = 15697271111480. Its totient is φ = 15697271111478.

The previous prime is 15697271111437. The next prime is 15697271111503. The reversal of 15697271111479 is 97411117279651.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15697271111479 - 2¹⁹ = 15697270587191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15697271171479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7848635555739 + 7848635555740.

It is an arithmetic number, because the mean of its divisors is an integer number (7848635555740).

Almost surely, 2^{15697271111479} is an apocalyptic number.

15697271111479 is a deficient number, since it is larger than the sum of its proper divisors (1).

15697271111479 is an equidigital number, since it uses as much as digits as its factorization.

15697271111479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6667920, while the sum is 61.

The spelling of 15697271111479 in words is "fifteen trillion, six hundred ninety-seven billion, two hundred seventy-one million, one hundred eleven thousand, four hundred seventy-nine".