20113861365879 has 32 divisors (see below), whose sum is σ = 27790406246400. Its totient is φ = 12926632665600.

The previous prime is 20113861365833. The next prime is 20113861365901. The reversal of 20113861365879 is 97856316831102.

It is not a de Polignac number, because 20113861365879 - 2⁷ = 20113861365751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20113861365079) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157631397 + ... + 157758945.

It is an arithmetic number, because the mean of its divisors is an integer number (868450195200).

Almost surely, 2^{20113861365879} is an apocalyptic number.

20113861365879 is a deficient number, since it is larger than the sum of its proper divisors (7676544880521).

20113861365879 is a wasteful number, since it uses less digits than its factorization.

20113861365879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134111.

The product of its (nonzero) digits is 13063680, while the sum is 60.

The spelling of 20113861365879 in words is "twenty trillion, one hundred thirteen billion, eight hundred sixty-one million, three hundred sixty-five thousand, eight hundred seventy-nine".