20220463778089 has 3 divisors (see below), whose sum is σ = 20220468274807. Its totient is φ = 20220459281372.

The previous prime is 20220463778083. The next prime is 20220463778183. The reversal of 20220463778089 is 98087736402202.

The square root of 20220463778089 is 4496717.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 209979315225 + 20010484462864 = 458235^2 + 4473308^2 .

It is not a de Polignac number, because 20220463778089 - 2⁵ = 20220463778057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20220463778083) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2248359 + ... + 6745075.

Almost surely, 2^{20220463778089} is an apocalyptic number.

20220463778089 is the 4496717-th square number.

20220463778089 is the 2248359-th centered octagonal number.

It is an amenable number.

20220463778089 is a deficient number, since it is larger than the sum of its proper divisors (4496718).

20220463778089 is an frugal number, since it uses more digits than its factorization.

20220463778089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8993434 (or 4496717 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 58.

The spelling of 20220463778089 in words is "twenty trillion, two hundred twenty billion, four hundred sixty-three million, seven hundred seventy-eight thousand, eighty-nine".