13208000450 has 18 divisors (see below), whose sum is σ = 24568392459. Its totient is φ = 5282875120.

The previous prime is 13208000431. The next prime is 13208000453. The reversal of 13208000450 is 5400080231.

It can be written as a sum of positive squares in 5 ways, for example, as 7323422929 + 5884577521 = 85577^2 + 76711^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=81265.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13208000453) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 804524 + ... + 820776.

Almost surely, 2^13208000450 is an apocalyptic number.

13208000450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13208000450 is a deficient number, since it is larger than the sum of its proper divisors (11360392009).

13208000450 is an frugal number, since it uses more digits than its factorization.

13208000450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32518 (or 16260 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 13208000450 its reverse (5400080231), we get a palindrome (18608080681).

The spelling of 13208000450 in words is "thirteen billion, two hundred eight million, four hundred fifty", and thus it is an aban number.