13533474432 has 64 divisors (see below), whose sum is σ = 37840327200. Its totient is φ = 4273726464.

The previous prime is 13533474431. The next prime is 13533474443. The reversal of 13533474432 is 23447433531.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (13533474431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920163 + ... + 934754.

Almost surely, 2^13533474432 is an apocalyptic number.

13533474432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13533474432 is an abundant number, since it is smaller than the sum of its proper divisors (24306852768).

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

13533474432 is a wasteful number, since it uses less digits than its factorization.

13533474432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854953 (or 1854941 counting only the distinct ones).

The product of its digits is 362880, while the sum is 39.

The spelling of 13533474432 in words is "thirteen billion, five hundred thirty-three million, four hundred seventy-four thousand, four hundred thirty-two".