13745564061 has 4 divisors (see below), whose sum is σ = 18327418752. Its totient is φ = 9163709372.

The previous prime is 13745564057. The next prime is 13745564069. The reversal of 13745564061 is 16046554731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13745564061 - 2² = 13745564057 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13745564069) 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, 2290927341 + ... + 2290927346.

It is an arithmetic number, because the mean of its divisors is an integer number (4581854688).

Almost surely, 2^13745564061 is an apocalyptic number.

It is an amenable number.

13745564061 is a deficient number, since it is larger than the sum of its proper divisors (4581854691).

13745564061 is an equidigital number, since it uses as much as digits as its factorization.

13745564061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4581854690.

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 13745564061 in words is "thirteen billion, seven hundred forty-five million, five hundred sixty-four thousand, sixty-one".