13570445247 has 4 divisors (see below), whose sum is σ = 18093927000. Its totient is φ = 9046963496.

The previous prime is 13570445243. The next prime is 13570445299. The reversal of 13570445247 is 74254407531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13570445247 - 2² = 13570445243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13570445199 and 13570445208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13570445243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2261740872 + ... + 2261740877.

It is an arithmetic number, because the mean of its divisors is an integer number (4523481750).

Almost surely, 2^13570445247 is an apocalyptic number.

13570445247 is a deficient number, since it is larger than the sum of its proper divisors (4523481753).

13570445247 is an equidigital number, since it uses as much as digits as its factorization.

13570445247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4523481752.

The product of its (nonzero) digits is 470400, while the sum is 42.

The spelling of 13570445247 in words is "thirteen billion, five hundred seventy million, four hundred forty-five thousand, two hundred forty-seven".