20889705295 has 8 divisors (see below), whose sum is σ = 25197531696. Its totient is φ = 16625174016.

The previous prime is 20889705283. The next prime is 20889705329. The reversal of 20889705295 is 59250798802.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20889705295 - 2⁹ = 20889704783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10822717 + ... + 10824646.

It is an arithmetic number, because the mean of its divisors is an integer number (3149691462).

Almost surely, 2^20889705295 is an apocalyptic number.

20889705295 is a deficient number, since it is larger than the sum of its proper divisors (4307826401).

20889705295 is a wasteful number, since it uses less digits than its factorization.

20889705295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21647561.

The product of its (nonzero) digits is 3628800, while the sum is 55.

The spelling of 20889705295 in words is "twenty billion, eight hundred eighty-nine million, seven hundred five thousand, two hundred ninety-five".