13189796450 has 12 divisors (see below), whose sum is σ = 24533021490. Its totient is φ = 5275918560.

The previous prime is 13189796441. The next prime is 13189796461. The reversal of 13189796450 is 5469798131.

It can be written as a sum of positive squares in 3 ways, for example, as 7522266361 + 5667530089 = 86731^2 + 75283^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13189796392 and 13189796401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131897915 + ... + 131898014.

Almost surely, 2^13189796450 is an apocalyptic number.

13189796450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13189796450 is a deficient number, since it is larger than the sum of its proper divisors (11343225040).

13189796450 is a wasteful number, since it uses less digits than its factorization.

13189796450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263795941 (or 263795936 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 13189796450 in words is "thirteen billion, one hundred eighty-nine million, seven hundred ninety-six thousand, four hundred fifty".