20091110182879 has 2 divisors, whose sum is σ = 20091110182880. Its totient is φ = 20091110182878.

The previous prime is 20091110182877. The next prime is 20091110182951. The reversal of 20091110182879 is 97828101119002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20091110182879 - 2¹ = 20091110182877 is a prime.

Together with 20091110182877, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20091110182877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10045555091439 + 10045555091440.

It is an arithmetic number, because the mean of its divisors is an integer number (10045555091440).

Almost surely, 2^{20091110182879} is an apocalyptic number.

20091110182879 is a deficient number, since it is larger than the sum of its proper divisors (1).

20091110182879 is an equidigital number, since it uses as much as digits as its factorization.

20091110182879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 49.

The spelling of 20091110182879 in words is "twenty trillion, ninety-one billion, one hundred ten million, one hundred eighty-two thousand, eight hundred seventy-nine".