13634653431 has 16 divisors (see below), whose sum is σ = 20824611584. Its totient is φ = 7773231744.

The previous prime is 13634653421. The next prime is 13634653451. The reversal of 13634653431 is 13435643631.

It is a happy number.

It is not a de Polignac number, because 13634653431 - 2¹¹ = 13634651383 is a prime.

It is a super-2 number, since 2×13634653431² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13634653431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13634653421) 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, 740641 + ... + 758826.

It is an arithmetic number, because the mean of its divisors is an integer number (1301538224).

Almost surely, 2^13634653431 is an apocalyptic number.

13634653431 is a deficient number, since it is larger than the sum of its proper divisors (7189958153).

13634653431 is a wasteful number, since it uses less digits than its factorization.

13634653431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499910.

The product of its digits is 233280, while the sum is 39.

The spelling of 13634653431 in words is "thirteen billion, six hundred thirty-four million, six hundred fifty-three thousand, four hundred thirty-one".