13117808425 has 12 divisors (see below), whose sum is σ = 16267513500. Its totient is φ = 10493323520.

The previous prime is 13117808423. The next prime is 13117808437. The reversal of 13117808425 is 52480871131.

It can be written as a sum of positive squares in 6 ways, for example, as 468982336 + 12648826089 = 21656^2 + 112467^2 .

It is not a de Polignac number, because 13117808425 - 2¹ = 13117808423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13117808423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 493269 + ... + 519181.

It is an arithmetic number, because the mean of its divisors is an integer number (1355626125).

Almost surely, 2^13117808425 is an apocalyptic number.

It is an amenable number.

13117808425 is a deficient number, since it is larger than the sum of its proper divisors (3149705075).

13117808425 is a wasteful number, since it uses less digits than its factorization.

13117808425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46172 (or 46167 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 13117808425 in words is "thirteen billion, one hundred seventeen million, eight hundred eight thousand, four hundred twenty-five".