2118693434 has 32 divisors (see below), whose sum is σ = 3738341376. Its totient is φ = 887843520.

The previous prime is 2118693407. The next prime is 2118693449. The reversal of 2118693434 is 4343968112.

It is a junction number, because it is equal to n+sod(n) for n = 2118693391 and 2118693400.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246599 + ... + 255045.

It is an arithmetic number, because the mean of its divisors is an integer number (116823168).

Almost surely, 2^2118693434 is an apocalyptic number.

2118693434 is a deficient number, since it is larger than the sum of its proper divisors (1619647942).

2118693434 is a wasteful number, since it uses less digits than its factorization.

2118693434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9350.

The product of its digits is 124416, while the sum is 41.

The square root of 2118693434 is about 46029.2671460235. The cubic root of 2118693434 is about 1284.3676952945.

The spelling of 2118693434 in words is "two billion, one hundred eighteen million, six hundred ninety-three thousand, four hundred thirty-four".