13243728025 has 48 divisors (see below), whose sum is σ = 19410418368. Its totient is φ = 8854272000.

The previous prime is 13243728011. The next prime is 13243728031. The reversal of 13243728025 is 52082734231.

It is not a de Polignac number, because 13243728025 - 2¹³ = 13243719833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 168085 + ... + 233965.

It is an arithmetic number, because the mean of its divisors is an integer number (404383716).

Almost surely, 2^13243728025 is an apocalyptic number.

It is an amenable number.

13243728025 is a deficient number, since it is larger than the sum of its proper divisors (6166690343).

13243728025 is a wasteful number, since it uses less digits than its factorization.

13243728025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65962 (or 65957 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 13243728025 in words is "thirteen billion, two hundred forty-three million, seven hundred twenty-eight thousand, twenty-five".