13444422500 has 30 divisors (see below), whose sum is σ = 29400268590. Its totient is φ = 5377768000.

The previous prime is 13444422469. The next prime is 13444422517. The reversal of 13444422500 is 522444431.

It can be written as a sum of positive squares in 5 ways, for example, as 6702041956 + 6742380544 = 81866^2 + 82112^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2686385 + ... + 2691384.

It is an arithmetic number, because the mean of its divisors is an integer number (980008953).

Almost surely, 2^13444422500 is an apocalyptic number.

13444422500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13444422500 is an abundant number, since it is smaller than the sum of its proper divisors (15955846090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13444422500 is an equidigital number, since it uses as much as digits as its factorization.

13444422500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5377793 (or 5377776 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 13444422500 its reverse (522444431), we get a palindrome (13966866931).

The spelling of 13444422500 in words is "thirteen billion, four hundred forty-four million, four hundred twenty-two thousand, five hundred".