13522172404 has 24 divisors (see below), whose sum is σ = 25488404480. Its totient is φ = 6239947104.

The previous prime is 13522172399. The next prime is 13522172471. The reversal of 13522172404 is 40427122531.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347557 + ... + 384499.

Almost surely, 2^13522172404 is an apocalyptic number.

It is an amenable number.

13522172404 is a deficient number, since it is larger than the sum of its proper divisors (11966232076).

13522172404 is a wasteful number, since it uses less digits than its factorization.

13522172404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43999 (or 43997 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

Adding to 13522172404 its reverse (40427122531), we get a palindrome (53949294935).

The spelling of 13522172404 in words is "thirteen billion, five hundred twenty-two million, one hundred seventy-two thousand, four hundred four".