2117912926 has 4 divisors (see below), whose sum is σ = 3176869392. Its totient is φ = 1058956462.

The previous prime is 2117912903. The next prime is 2117912941. The reversal of 2117912926 is 6292197112.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 529478230 + ... + 529478233.

It is an arithmetic number, because the mean of its divisors is an integer number (794217348).

Almost surely, 2^2117912926 is an apocalyptic number.

2117912926 is a deficient number, since it is larger than the sum of its proper divisors (1058956466).

2117912926 is a wasteful number, since it uses less digits than its factorization.

2117912926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058956465.

The product of its digits is 27216, while the sum is 40.

The square root of 2117912926 is about 46020.7879767394. The cubic root of 2117912926 is about 1284.2099593413.

The spelling of 2117912926 in words is "two billion, one hundred seventeen million, nine hundred twelve thousand, nine hundred twenty-six".