13438954825 has 12 divisors (see below), whose sum is σ = 16687503360. Its totient is φ = 10736196560.

The previous prime is 13438954817. The next prime is 13438954829. The reversal of 13438954825 is 52845983431.

It is not a de Polignac number, because 13438954825 - 2³ = 13438954817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13438954829) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 355849 + ... + 391798.

It is an arithmetic number, because the mean of its divisors is an integer number (1390625280).

Almost surely, 2^13438954825 is an apocalyptic number.

It is an amenable number.

13438954825 is a deficient number, since it is larger than the sum of its proper divisors (3248548535).

13438954825 is an equidigital number, since it uses as much as digits as its factorization.

13438954825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748376 (or 748371 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 52.

The spelling of 13438954825 in words is "thirteen billion, four hundred thirty-eight million, nine hundred fifty-four thousand, eight hundred twenty-five".