13475894450 has 18 divisors (see below), whose sum is σ = 25066690551. Its totient is φ = 5390029440.

The previous prime is 13475894423. The next prime is 13475894477. The reversal of 13475894450 is 5449857431.

It is a happy number.

13475894450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13475894423) and next prime (13475894477).

It can be written as a sum of positive squares in 5 ways, for example, as 1880696689 + 11595197761 = 43367^2 + 107681^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=82085.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 812642 + ... + 829058.

Almost surely, 2^13475894450 is an apocalyptic number.

13475894450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13475894450 is a deficient number, since it is larger than the sum of its proper divisors (11590796101).

13475894450 is an frugal number, since it uses more digits than its factorization.

13475894450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32846 (or 16424 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 50.

Multiplying 13475894450 by its sum of digits (50), we get a square (673794722500 = 820850²).

13475894450 divided by its sum of digits (50) gives a square (269517889 = 16417²).

The spelling of 13475894450 in words is "thirteen billion, four hundred seventy-five million, eight hundred ninety-four thousand, four hundred fifty".