879910231111 has 4 divisors (see below), whose sum is σ = 884996417592. Its totient is φ = 874824044632.

The previous prime is 879910231097. The next prime is 879910231139. The reversal of 879910231111 is 111132019978.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 879910231111 - 2¹⁷ = 879910100039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (879910231411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2543092981 + ... + 2543093326.

It is an arithmetic number, because the mean of its divisors is an integer number (221249104398).

Almost surely, 2^879910231111 is an apocalyptic number.

879910231111 is a deficient number, since it is larger than the sum of its proper divisors (5086186481).

879910231111 is a wasteful number, since it uses less digits than its factorization.

879910231111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5086186480.

The product of its (nonzero) digits is 27216, while the sum is 43.

The spelling of 879910231111 in words is "eight hundred seventy-nine billion, nine hundred ten million, two hundred thirty-one thousand, one hundred eleven".