20880709043 has 4 divisors (see below), whose sum is σ = 20883755760. Its totient is φ = 20877662328.

The previous prime is 20880709037. The next prime is 20880709061. The reversal of 20880709043 is 34090708802.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20880709043 - 2⁴ = 20880709027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20880709033) 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, 1513055 + ... + 1526792.

It is an arithmetic number, because the mean of its divisors is an integer number (5220938940).

Almost surely, 2^20880709043 is an apocalyptic number.

20880709043 is a deficient number, since it is larger than the sum of its proper divisors (3046717).

20880709043 is an equidigital number, since it uses as much as digits as its factorization.

20880709043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3046716.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 20880709043 in words is "twenty billion, eight hundred eighty million, seven hundred nine thousand, forty-three".