2118429943 has 16 divisors (see below), whose sum is σ = 2504226816. Its totient is φ = 1754285760.

The previous prime is 2118429941. The next prime is 2118429983. The reversal of 2118429943 is 3499248112.

It is a cyclic number.

It is not a de Polignac number, because 2118429943 - 2¹ = 2118429941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2118429943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118429941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6271 + ... + 65392.

It is an arithmetic number, because the mean of its divisors is an integer number (156514176).

Almost surely, 2^2118429943 is an apocalyptic number.

2118429943 is a deficient number, since it is larger than the sum of its proper divisors (385796873).

2118429943 is a wasteful number, since it uses less digits than its factorization.

2118429943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71814.

The product of its digits is 124416, while the sum is 43.

The square root of 2118429943 is about 46026.4048454797. The cubic root of 2118429943 is about 1284.3144496868.

The spelling of 2118429943 in words is "two billion, one hundred eighteen million, four hundred twenty-nine thousand, nine hundred forty-three".