13622135425 has 6 divisors (see below), whose sum is σ = 16891447958. Its totient is φ = 10897708320.

The previous prime is 13622135399. The next prime is 13622135497. The reversal of 13622135425 is 52453122631.

It can be written as a sum of positive squares in 3 ways, for example, as 4136933761 + 9485201664 = 64319^2 + 97392^2 .

It is not a de Polignac number, because 13622135425 - 2⁷ = 13622135297 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, 272442684 + ... + 272442733.

Almost surely, 2^13622135425 is an apocalyptic number.

It is an amenable number.

13622135425 is a deficient number, since it is larger than the sum of its proper divisors (3269312533).

13622135425 is an equidigital number, since it uses as much as digits as its factorization.

13622135425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544885427 (or 544885422 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

The spelling of 13622135425 in words is "thirteen billion, six hundred twenty-two million, one hundred thirty-five thousand, four hundred twenty-five".