13649094631 has 16 divisors (see below), whose sum is σ = 14313632256. Its totient is φ = 12990659616.

The previous prime is 13649094629. The next prime is 13649094637.

13649094631 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 13649094631 - 2¹ = 13649094629 is a prime.

It is a super-2 number, since 2×13649094631² (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 (13649094637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4313656 + ... + 4316818.

It is an arithmetic number, because the mean of its divisors is an integer number (894602016).

Almost surely, 2^13649094631 is an apocalyptic number.

13649094631 is a deficient number, since it is larger than the sum of its proper divisors (664537625).

13649094631 is a wasteful number, since it uses less digits than its factorization.

13649094631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4062.

The product of its (nonzero) digits is 419904, while the sum is 46.

The spelling of 13649094631 in words is "thirteen billion, six hundred forty-nine million, ninety-four thousand, six hundred thirty-one".