16840846343 has 2 divisors, whose sum is σ = 16840846344. Its totient is φ = 16840846342.

The previous prime is 16840846277. The next prime is 16840846367. The reversal of 16840846343 is 34364804861.

It is a strong prime.

It is an emirp because it is prime and its reverse (34364804861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16840846343 - 2¹² = 16840842247 is a prime.

It is a super-2 number, since 2×16840846343² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16840846643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8420423171 + 8420423172.

It is an arithmetic number, because the mean of its divisors is an integer number (8420423172).

Almost surely, 2^16840846343 is an apocalyptic number.

16840846343 is a deficient number, since it is larger than the sum of its proper divisors (1).

16840846343 is an equidigital number, since it uses as much as digits as its factorization.

16840846343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1327104, while the sum is 47.

The spelling of 16840846343 in words is "sixteen billion, eight hundred forty million, eight hundred forty-six thousand, three hundred forty-three".