13654845631 has 6 divisors (see below), whose sum is σ = 15884208240. Its totient is φ = 11704153356.

The previous prime is 13654845629. The next prime is 13654845637.

13654845631 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13654845631 - 2¹ = 13654845629 is a prime.

It is a super-2 number, since 2×13654845631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13654845637) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139335111 + ... + 139335208.

It is an arithmetic number, because the mean of its divisors is an integer number (2647368040).

Almost surely, 2^13654845631 is an apocalyptic number.

13654845631 is a deficient number, since it is larger than the sum of its proper divisors (2229362609).

13654845631 is an equidigital number, since it uses as much as digits as its factorization.

13654845631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278670333 (or 278670326 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 46.

The spelling of 13654845631 in words is "thirteen billion, six hundred fifty-four million, eight hundred forty-five thousand, six hundred thirty-one".