16738521847 has 2 divisors, whose sum is σ = 16738521848. Its totient is φ = 16738521846.

The previous prime is 16738521809. The next prime is 16738521869. The reversal of 16738521847 is 74812583761.

It is a strong prime.

It is an emirp because it is prime and its reverse (74812583761) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16738521847 is a prime.

It is a super-2 number, since 2×16738521847² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16738521794 and 16738521803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16738521887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8369260923 + 8369260924.

It is an arithmetic number, because the mean of its divisors is an integer number (8369260924).

Almost surely, 2^16738521847 is an apocalyptic number.

16738521847 is a deficient number, since it is larger than the sum of its proper divisors (1).

16738521847 is an equidigital number, since it uses as much as digits as its factorization.

16738521847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2257920, while the sum is 52.

The spelling of 16738521847 in words is "sixteen billion, seven hundred thirty-eight million, five hundred twenty-one thousand, eight hundred forty-seven".