20869847296 has 27 divisors (see below), whose sum is σ = 41662786081. Its totient is φ = 10433767936.

The previous prime is 20869847237. The next prime is 20869847351. The reversal of 20869847296 is 69274896802.

The square root of 20869847296 is 144464.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 20832880896 + 36966400 = 144336^2 + 6080^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2306910 + ... + 2315938.

Almost surely, 2^20869847296 is an apocalyptic number.

20869847296 is the 144464-th square number.

It is an amenable number.

20869847296 is a deficient number, since it is larger than the sum of its proper divisors (20792938785).

20869847296 is an frugal number, since it uses more digits than its factorization.

20869847296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18074 (or 9031 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 61.

The spelling of 20869847296 in words is "twenty billion, eight hundred sixty-nine million, eight hundred forty-seven thousand, two hundred ninety-six".