20943776582 has 8 divisors (see below), whose sum is σ = 31422888336. Its totient is φ = 10469480472.

The previous prime is 20943776521. The next prime is 20943776617. The reversal of 20943776582 is 28567734902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1193018 + ... + 1210445.

It is an arithmetic number, because the mean of its divisors is an integer number (3927861042).

Almost surely, 2^20943776582 is an apocalyptic number.

20943776582 is a deficient number, since it is larger than the sum of its proper divisors (10479111754).

20943776582 is a wasteful number, since it uses less digits than its factorization.

20943776582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407822.

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 20943776582 in words is "twenty billion, nine hundred forty-three million, seven hundred seventy-six thousand, five hundred eighty-two".