2118929913 has 12 divisors (see below), whose sum is σ = 3221765040. Its totient is φ = 1338271416.

The previous prime is 2118929903. The next prime is 2118929927. The reversal of 2118929913 is 3199298112.

It is not a de Polignac number, because 2118929913 - 2¹² = 2118925817 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2118929903) 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 11 ways as a sum of consecutive naturals, for example, 6195531 + ... + 6195872.

It is an arithmetic number, because the mean of its divisors is an integer number (268480420).

Almost surely, 2^2118929913 is an apocalyptic number.

It is an amenable number.

2118929913 is a deficient number, since it is larger than the sum of its proper divisors (1102835127).

2118929913 is a wasteful number, since it uses less digits than its factorization.

2118929913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12391428 (or 12391425 counting only the distinct ones).

The product of its digits is 69984, while the sum is 45.

The square root of 2118929913 is about 46031.8358638888. The cubic root of 2118929913 is about 1284.4154786255.

The spelling of 2118929913 in words is "two billion, one hundred eighteen million, nine hundred twenty-nine thousand, nine hundred thirteen".