13650640413 has 4 divisors (see below), whose sum is σ = 18200853888. Its totient is φ = 9100426940.

The previous prime is 13650640403. The next prime is 13650640429. The reversal of 13650640413 is 31404605631.

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 13650640413 - 2⁶ = 13650640349 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13650640403) 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, 2275106733 + ... + 2275106738.

It is an arithmetic number, because the mean of its divisors is an integer number (4550213472).

Almost surely, 2^13650640413 is an apocalyptic number.

It is an amenable number.

13650640413 is a deficient number, since it is larger than the sum of its proper divisors (4550213475).

13650640413 is an equidigital number, since it uses as much as digits as its factorization.

13650640413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4550213474.

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 13650640413 in words is "thirteen billion, six hundred fifty million, six hundred forty thousand, four hundred thirteen".