20113179756889 has 2 divisors, whose sum is σ = 20113179756890. Its totient is φ = 20113179756888.

The previous prime is 20113179756823. The next prime is 20113179756899. The reversal of 20113179756889 is 98865797131102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19871624217600 + 241555539289 = 4457760^2 + 491483^2 .

It is a cyclic number.

It is not a de Polignac number, because 20113179756889 - 2²⁹ = 20112642885977 is a prime.

It is not a weakly prime, because it can be changed into another prime (20113179756899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056589878444 + 10056589878445.

It is an arithmetic number, because the mean of its divisors is an integer number (10056589878445).

Almost surely, 2^{20113179756889} is an apocalyptic number.

It is an amenable number.

20113179756889 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113179756889 is an equidigital number, since it uses as much as digits as its factorization.

20113179756889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45722880, while the sum is 67.

The spelling of 20113179756889 in words is "twenty trillion, one hundred thirteen billion, one hundred seventy-nine million, seven hundred fifty-six thousand, eight hundred eighty-nine".