15679359480397 has 2 divisors, whose sum is σ = 15679359480398. Its totient is φ = 15679359480396.

The previous prime is 15679359480373. The next prime is 15679359480413. The reversal of 15679359480397 is 79308495397651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15602349900361 + 77009580036 = 3949981^2 + 277506^2 .

It is a cyclic number.

It is not a de Polignac number, because 15679359480397 - 2¹⁵ = 15679359447629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15679359480307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7839679740198 + 7839679740199.

It is an arithmetic number, because the mean of its divisors is an integer number (7839679740199).

Almost surely, 2^{15679359480397} is an apocalyptic number.

It is an amenable number.

15679359480397 is a deficient number, since it is larger than the sum of its proper divisors (1).

15679359480397 is an equidigital number, since it uses as much as digits as its factorization.

15679359480397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1543147200, while the sum is 76.

The spelling of 15679359480397 in words is "fifteen trillion, six hundred seventy-nine billion, three hundred fifty-nine million, four hundred eighty thousand, three hundred ninety-seven".