20932386873 has 4 divisors (see below), whose sum is σ = 27909849168. Its totient is φ = 13954924580.

The previous prime is 20932386869. The next prime is 20932386889. The reversal of 20932386873 is 37868323902.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20932386873 - 2² = 20932386869 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20932386833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3488731143 + ... + 3488731148.

It is an arithmetic number, because the mean of its divisors is an integer number (6977462292).

Almost surely, 2^20932386873 is an apocalyptic number.

It is an amenable number.

20932386873 is a deficient number, since it is larger than the sum of its proper divisors (6977462295).

20932386873 is an equidigital number, since it uses as much as digits as its factorization.

20932386873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6977462294.

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 20932386873 in words is "twenty billion, nine hundred thirty-two million, three hundred eighty-six thousand, eight hundred seventy-three".