13289477472 has 72 divisors (see below), whose sum is σ = 37954340424. Its totient is φ = 4410791424.

The previous prime is 13289477471. The next prime is 13289477491. The reversal of 13289477472 is 27477498231.

13289477472 is a `hidden beast` number, since 13 + 2 + 8 + 94 + 77 + 472 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×13289477472² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13289477471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31918 + ... + 166125.

It is an arithmetic number, because the mean of its divisors is an integer number (527143617).

Almost surely, 2^13289477472 is an apocalyptic number.

13289477472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13289477472 is an abundant number, since it is smaller than the sum of its proper divisors (24664862952).

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

13289477472 is a wasteful number, since it uses less digits than its factorization.

13289477472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198292 (or 198281 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 54.

The spelling of 13289477472 in words is "thirteen billion, two hundred eighty-nine million, four hundred seventy-seven thousand, four hundred seventy-two".