20221467489 has 12 divisors (see below), whose sum is σ = 29509909156. Its totient is φ = 13341998592.

The previous prime is 20221467433. The next prime is 20221467491. The reversal of 20221467489 is 98476412202.

20221467489 is a `hidden beast` number, since 2 + 0 + 22 + 146 + 7 + 489 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6346512225 + 13874955264 = 79665^2 + 117792^2 .

It is not a de Polignac number, because 20221467489 - 2¹⁵ = 20221434721 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20221427489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11580724 + ... + 11582469.

Almost surely, 2^20221467489 is an apocalyptic number.

It is an amenable number.

20221467489 is a deficient number, since it is larger than the sum of its proper divisors (9288441667).

20221467489 is a wasteful number, since it uses less digits than its factorization.

20221467489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23163296 (or 23163293 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 20221467489 in words is "twenty billion, two hundred twenty-one million, four hundred sixty-seven thousand, four hundred eighty-nine".