12631454653 has 4 divisors (see below), whose sum is σ = 12680604540. Its totient is φ = 12582304768.

The previous prime is 12631454639. The next prime is 12631454659. The reversal of 12631454653 is 35645413621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11354607364 + 1276847289 = 106558^2 + 35733^2 .

It is a cyclic number.

It is not a de Polignac number, because 12631454653 - 2³³ = 4041520061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12631454659) 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, 24574558 + ... + 24575071.

It is an arithmetic number, because the mean of its divisors is an integer number (3170151135).

Almost surely, 2^12631454653 is an apocalyptic number.

It is an amenable number.

12631454653 is a deficient number, since it is larger than the sum of its proper divisors (49149887).

12631454653 is an equidigital number, since it uses as much as digits as its factorization.

12631454653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49149886.

The product of its digits is 259200, while the sum is 40.

The spelling of 12631454653 in words is "twelve billion, six hundred thirty-one million, four hundred fifty-four thousand, six hundred fifty-three".