13625309613 has 4 divisors (see below), whose sum is σ = 18167079488. Its totient is φ = 9083539740.

The previous prime is 13625309539. The next prime is 13625309657. The reversal of 13625309613 is 31690352631.

13625309613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13625309613 - 2¹⁰ = 13625308589 is a prime.

It is a super-2 number, since 2×13625309613² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13625304613) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2270884933 + ... + 2270884938.

It is an arithmetic number, because the mean of its divisors is an integer number (4541769872).

Almost surely, 2^13625309613 is an apocalyptic number.

It is an amenable number.

13625309613 is a deficient number, since it is larger than the sum of its proper divisors (4541769875).

13625309613 is an equidigital number, since it uses as much as digits as its factorization.

13625309613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4541769874.

The product of its (nonzero) digits is 87480, while the sum is 39.

The spelling of 13625309613 in words is "thirteen billion, six hundred twenty-five million, three hundred nine thousand, six hundred thirteen".