13451525436 has 48 divisors (see below), whose sum is σ = 32867460864. Its totient is φ = 4273712256.

The previous prime is 13451525401. The next prime is 13451525447. The reversal of 13451525436 is 63452515431.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13451525394 and 13451525403.

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 15 ways as a sum of consecutive naturals, for example, 8001 + ... + 164216.

It is an arithmetic number, because the mean of its divisors is an integer number (684738768).

Almost surely, 2^13451525436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13451525436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16433730432).

13451525436 is an abundant number, since it is smaller than the sum of its proper divisors (19415935428).

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

13451525436 is a wasteful number, since it uses less digits than its factorization.

13451525436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172530 (or 172528 counting only the distinct ones).

The product of its digits is 216000, while the sum is 39.

It can be divided in two parts, 134515 and 25436, that added together give a palindrome (159951).

The spelling of 13451525436 in words is "thirteen billion, four hundred fifty-one million, five hundred twenty-five thousand, four hundred thirty-six".