2168935814 has 4 divisors (see below), whose sum is σ = 3253403724. Its totient is φ = 1084467906.

The previous prime is 2168935807. The next prime is 2168935817. The reversal of 2168935814 is 4185398612.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2168935817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 542233952 + ... + 542233955.

It is an arithmetic number, because the mean of its divisors is an integer number (813350931).

Almost surely, 2^2168935814 is an apocalyptic number.

2168935814 is a deficient number, since it is larger than the sum of its proper divisors (1084467910).

2168935814 is a wasteful number, since it uses less digits than its factorization.

2168935814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084467909.

The product of its digits is 414720, while the sum is 47.

The square root of 2168935814 is about 46571.8349863949. The cubic root of 2168935814 is about 1294.4409196518.

The spelling of 2168935814 in words is "two billion, one hundred sixty-eight million, nine hundred thirty-five thousand, eight hundred fourteen".