15478716489983 has 2 divisors, whose sum is σ = 15478716489984. Its totient is φ = 15478716489982.

The previous prime is 15478716489953. The next prime is 15478716490009. The reversal of 15478716489983 is 38998461787451.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15478716489983 - 2³⁰ = 15477642748159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15478716489898 and 15478716489907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15478716489953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7739358244991 + 7739358244992.

It is an arithmetic number, because the mean of its divisors is an integer number (7739358244992).

Almost surely, 2^{15478716489983} is an apocalyptic number.

15478716489983 is a deficient number, since it is larger than the sum of its proper divisors (1).

15478716489983 is an equidigital number, since it uses as much as digits as its factorization.

15478716489983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2926264320, while the sum is 80.

The spelling of 15478716489983 in words is "fifteen trillion, four hundred seventy-eight billion, seven hundred sixteen million, four hundred eighty-nine thousand, nine hundred eighty-three".