16802420734747 has 2 divisors, whose sum is σ = 16802420734748. Its totient is φ = 16802420734746.

The previous prime is 16802420734691. The next prime is 16802420734753. The reversal of 16802420734747 is 74743702420861.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16802420734747 is a prime.

It is not a weakly prime, because it can be changed into another prime (16802420734247) 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, 8401210367373 + 8401210367374.

It is an arithmetic number, because the mean of its divisors is an integer number (8401210367374).

Almost surely, 2^{16802420734747} is an apocalyptic number.

16802420734747 is a deficient number, since it is larger than the sum of its proper divisors (1).

16802420734747 is an equidigital number, since it uses as much as digits as its factorization.

16802420734747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12644352, while the sum is 55.

The spelling of 16802420734747 in words is "sixteen trillion, eight hundred two billion, four hundred twenty million, seven hundred thirty-four thousand, seven hundred forty-seven".