16841620819 has 2 divisors, whose sum is σ = 16841620820. Its totient is φ = 16841620818.

The previous prime is 16841620739. The next prime is 16841620823. The reversal of 16841620819 is 91802614861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16841620819 - 2²³ = 16833232211 is a prime.

It is a super-2 number, since 2×16841620819² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16841620889) 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, 8420810409 + 8420810410.

It is an arithmetic number, because the mean of its divisors is an integer number (8420810410).

Almost surely, 2^16841620819 is an apocalyptic number.

16841620819 is a deficient number, since it is larger than the sum of its proper divisors (1).

16841620819 is an equidigital number, since it uses as much as digits as its factorization.

16841620819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 46.

The spelling of 16841620819 in words is "sixteen billion, eight hundred forty-one million, six hundred twenty thousand, eight hundred nineteen".