2117320919834 has 16 divisors (see below), whose sum is σ = 3363557539968. Its totient is φ = 996162988992.

The previous prime is 2117320919827. The next prime is 2117320919839. The reversal of 2117320919834 is 4389190237112.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2117320919839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6824972 + ... + 7128455.

It is an arithmetic number, because the mean of its divisors is an integer number (210222346248).

Almost surely, 2^{2117320919834} is an apocalyptic number.

2117320919834 is a deficient number, since it is larger than the sum of its proper divisors (1246236620134).

2117320919834 is a wasteful number, since it uses less digits than its factorization.

2117320919834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13957909.

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 2117320919834 in words is "two trillion, one hundred seventeen billion, three hundred twenty million, nine hundred nineteen thousand, eight hundred thirty-four".