20083686091 has 4 divisors (see below), whose sum is σ = 22952784112. Its totient is φ = 17214588072.

The previous prime is 20083686079. The next prime is 20083686101. The reversal of 20083686091 is 19068638002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19068638002 = 2 ⋅9534319001.

It is a cyclic number.

It is not a de Polignac number, because 20083686091 - 2¹³ = 20083677899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20083686061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1434549000 + ... + 1434549013.

It is an arithmetic number, because the mean of its divisors is an integer number (5738196028).

Almost surely, 2^20083686091 is an apocalyptic number.

20083686091 is a deficient number, since it is larger than the sum of its proper divisors (2869098021).

20083686091 is an equidigital number, since it uses as much as digits as its factorization.

20083686091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869098020.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 20083686091 in words is "twenty billion, eighty-three million, six hundred eighty-six thousand, ninety-one".