13650205631 has 4 divisors (see below), whose sum is σ = 13651686312. Its totient is φ = 13648724952.

The previous prime is 13650205619. The next prime is 13650205697.

13650205631 is nontrivially palindromic in base 10.

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 13650205631 - 2⁶ = 13650205567 is a prime.

It is a super-3 number, since 3×13650205631³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13650205831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726425 + ... + 744978.

It is an arithmetic number, because the mean of its divisors is an integer number (3412921578).

Almost surely, 2^13650205631 is an apocalyptic number.

13650205631 is a deficient number, since it is larger than the sum of its proper divisors (1480681).

13650205631 is an equidigital number, since it uses as much as digits as its factorization.

13650205631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480680.

The product of its (nonzero) digits is 16200, while the sum is 32.

The spelling of 13650205631 in words is "thirteen billion, six hundred fifty million, two hundred five thousand, six hundred thirty-one".