13635231438 has 8 divisors (see below), whose sum is σ = 27270462888. Its totient is φ = 4545077144.

The previous prime is 13635231413. The next prime is 13635231499. The reversal of 13635231438 is 83413253631.

It is a sphenic number, since it is the product of 3 distinct primes.

13635231438 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 13635231396 and 13635231405.

It is a congruent number.

It is an unprimeable number.

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, 1136269281 + ... + 1136269292.

It is an arithmetic number, because the mean of its divisors is an integer number (3408807861).

Almost surely, 2^13635231438 is an apocalyptic number.

13635231438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13635231438 is a wasteful number, since it uses less digits than its factorization.

13635231438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2272538578.

The product of its digits is 155520, while the sum is 39.

The spelling of 13635231438 in words is "thirteen billion, six hundred thirty-five million, two hundred thirty-one thousand, four hundred thirty-eight".