16834643861 has 8 divisors (see below), whose sum is σ = 19257236544. Its totient is φ = 14416462080.

The previous prime is 16834643857. The next prime is 16834643951.

16834643861 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16834643861 - 2² = 16834643857 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16834643821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1094540 + ... + 1109813.

It is an arithmetic number, because the mean of its divisors is an integer number (2407154568).

Almost surely, 2^16834643861 is an apocalyptic number.

It is an amenable number.

16834643861 is a deficient number, since it is larger than the sum of its proper divisors (2422592683).

16834643861 is a wasteful number, since it uses less digits than its factorization.

16834643861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205451.

The product of its digits is 1990656, while the sum is 50.

The spelling of 16834643861 in words is "sixteen billion, eight hundred thirty-four million, six hundred forty-three thousand, eight hundred sixty-one".