22148389513 has 4 divisors (see below), whose sum is σ = 22148749588. Its totient is φ = 22148029440.

The previous prime is 22148389499. The next prime is 22148389517. The reversal of 22148389513 is 31598384122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10792716544 + 11355672969 = 103888^2 + 106563^2 .

It is a cyclic number.

It is not a de Polignac number, because 22148389513 - 2¹⁷ = 22148258441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22148389517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61956 + ... + 219397.

It is an arithmetic number, because the mean of its divisors is an integer number (5537187397).

Almost surely, 2^22148389513 is an apocalyptic number.

It is an amenable number.

22148389513 is a deficient number, since it is larger than the sum of its proper divisors (360075).

22148389513 is an equidigital number, since it uses as much as digits as its factorization.

22148389513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360074.

The product of its digits is 414720, while the sum is 46.

The spelling of 22148389513 in words is "twenty-two billion, one hundred forty-eight million, three hundred eighty-nine thousand, five hundred thirteen".