20201086879 has 2 divisors, whose sum is σ = 20201086880. Its totient is φ = 20201086878.

The previous prime is 20201086811. The next prime is 20201086889. The reversal of 20201086879 is 97868010202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20201086879 - 2⁷ = 20201086751 is a prime.

It is a super-2 number, since 2×20201086879² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20201086889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100543439 + 10100543440.

It is an arithmetic number, because the mean of its divisors is an integer number (10100543440).

Almost surely, 2^20201086879 is an apocalyptic number.

20201086879 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201086879 is an equidigital number, since it uses as much as digits as its factorization.

20201086879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 20201086879 in words is "twenty billion, two hundred one million, eighty-six thousand, eight hundred seventy-nine".