13484434825 has 18 divisors (see below), whose sum is σ = 17479311374. Its totient is φ = 10318513920.

The previous prime is 13484434823. The next prime is 13484434883. The reversal of 13484434825 is 52843448431.

It can be written as a sum of positive squares in 3 ways, for example, as 1659177289 + 11825257536 = 40733^2 + 108744^2 .

It is not a de Polignac number, because 13484434825 - 2¹ = 13484434823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13484434823) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 496584 + ... + 523033.

Almost surely, 2^13484434825 is an apocalyptic number.

It is an amenable number.

13484434825 is a deficient number, since it is larger than the sum of its proper divisors (3994876549).

13484434825 is a wasteful number, since it uses less digits than its factorization.

13484434825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019673 (or 1019645 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 46.

The spelling of 13484434825 in words is "thirteen billion, four hundred eighty-four million, four hundred thirty-four thousand, eight hundred twenty-five".