16843434861 has 12 divisors (see below), whose sum is σ = 24685144736. Its totient is φ = 10208142120.

The previous prime is 16843434851. The next prime is 16843434919.

16843434861 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 16843434861 - 2¹³ = 16843426669 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16843434861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16843434851) 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 in 11 ways as a sum of consecutive naturals, for example, 23199961 + ... + 23200686.

Almost surely, 2^16843434861 is an apocalyptic number.

16843434861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16843434861 is a deficient number, since it is larger than the sum of its proper divisors (7841709875).

16843434861 is a wasteful number, since it uses less digits than its factorization.

16843434861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46400672 (or 46400661 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 48.

The spelling of 16843434861 in words is "sixteen billion, eight hundred forty-three million, four hundred thirty-four thousand, eight hundred sixty-one".