15217696848149 has 2 divisors, whose sum is σ = 15217696848150. Its totient is φ = 15217696848148.

The previous prime is 15217696847987. The next prime is 15217696848163. The reversal of 15217696848149 is 94184869671251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10229397945649 + 4988298902500 = 3198343^2 + 2233450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15217696848149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15217696848749) 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 as a sum of consecutive naturals, namely, 7608848424074 + 7608848424075.

It is an arithmetic number, because the mean of its divisors is an integer number (7608848424075).

Almost surely, 2^{15217696848149} is an apocalyptic number.

It is an amenable number.

15217696848149 is a deficient number, since it is larger than the sum of its proper divisors (1).

15217696848149 is an equidigital number, since it uses as much as digits as its factorization.

15217696848149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209018880, while the sum is 71.

The spelling of 15217696848149 in words is "fifteen trillion, two hundred seventeen billion, six hundred ninety-six million, eight hundred forty-eight thousand, one hundred forty-nine".