15423349701217 has 2 divisors, whose sum is σ = 15423349701218. Its totient is φ = 15423349701216.

The previous prime is 15423349701191. The next prime is 15423349701223. The reversal of 15423349701217 is 71210794332451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15412211853921 + 11137847296 = 3925839^2 + 105536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15423349701217 is a prime.

It is not a weakly prime, because it can be changed into another prime (15423349701017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7711674850608 + 7711674850609.

It is an arithmetic number, because the mean of its divisors is an integer number (7711674850609).

Almost surely, 2^{15423349701217} is an apocalyptic number.

It is an amenable number.

15423349701217 is a deficient number, since it is larger than the sum of its proper divisors (1).

15423349701217 is an equidigital number, since it uses as much as digits as its factorization.

15423349701217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 15423349701217 in words is "fifteen trillion, four hundred twenty-three billion, three hundred forty-nine million, seven hundred one thousand, two hundred seventeen".