13938321025 has 6 divisors (see below), whose sum is σ = 17283518102. Its totient is φ = 11150656800.

The previous prime is 13938320999. The next prime is 13938321041. The reversal of 13938321025 is 52012383931.

It can be written as a sum of positive squares in 3 ways, for example, as 349989264 + 13588331761 = 18708^2 + 116569^2 .

It is not a de Polignac number, because 13938321025 - 2¹⁷ = 13938189953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278766396 + ... + 278766445.

Almost surely, 2^13938321025 is an apocalyptic number.

It is an amenable number.

13938321025 is a deficient number, since it is larger than the sum of its proper divisors (3345197077).

13938321025 is an equidigital number, since it uses as much as digits as its factorization.

13938321025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557532851 (or 557532846 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The spelling of 13938321025 in words is "thirteen billion, nine hundred thirty-eight million, three hundred twenty-one thousand, twenty-five".