13453635431 has 4 divisors (see below), whose sum is σ = 13454356872. Its totient is φ = 13452913992.

The previous prime is 13453635407. The next prime is 13453635497.

13453635431 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 13453635431 - 2²² = 13449441127 is a prime.

It is a super-4 number, since 4×13453635431⁴ (a number of 42 digits) contains 4444 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 (13453635031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331985 + ... + 370298.

It is an arithmetic number, because the mean of its divisors is an integer number (3363589218).

Almost surely, 2^13453635431 is an apocalyptic number.

13453635431 is a deficient number, since it is larger than the sum of its proper divisors (721441).

13453635431 is an equidigital number, since it uses as much as digits as its factorization.

13453635431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721440.

The product of its digits is 194400, while the sum is 38.

The spelling of 13453635431 in words is "thirteen billion, four hundred fifty-three million, six hundred thirty-five thousand, four hundred thirty-one".