13478927232 has 128 divisors (see below), whose sum is σ = 36756720000.
Its totient is φ = 4374042624.
The previous prime is 13478927221. The next prime is 13478927233. The reversal of 13478927232 is 23272987431.
It is a tau number, because it is divible by the number of its divisors (128).
It is a Harshad number since it is a multiple of its sum of digits (48).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13478927233) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5761519 + ... + 5763857.
It is an arithmetic number, because the mean of its divisors is an integer number (287161875).
Almost surely, 213478927232 is an apocalyptic number.
13478927232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 13478927232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18378360000).
13478927232 is an abundant number, since it is smaller than the sum of its proper divisors (23277792768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13478927232 is a wasteful number, since it uses less digits than its factorization.
13478927232 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2748 (or 2736 counting only the distinct ones).
The product of its digits is 1016064, while the sum is 48.
The spelling of 13478927232 in words is "thirteen billion, four hundred seventy-eight million, nine hundred twenty-seven thousand, two hundred thirty-two".