2118906266942 has 8 divisors (see below), whose sum is σ = 3201225295800. Its totient is φ = 1051831168344.

The previous prime is 2118906266941. The next prime is 2118906266951. The reversal of 2118906266942 is 2496626098112.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118906266941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3810982217 + ... + 3810982772.

It is an arithmetic number, because the mean of its divisors is an integer number (400153161975).

Almost surely, 2^{2118906266942} is an apocalyptic number.

2118906266942 is a deficient number, since it is larger than the sum of its proper divisors (1082319028858).

2118906266942 is a wasteful number, since it uses less digits than its factorization.

2118906266942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7621965130.

The product of its (nonzero) digits is 4478976, while the sum is 56.

The spelling of 2118906266942 in words is "two trillion, one hundred eighteen billion, nine hundred six million, two hundred sixty-six thousand, nine hundred forty-two".