13478821080 has 128 divisors (see below), whose sum is σ = 42425856000. Its totient is φ = 3421324800.

The previous prime is 13478821079. The next prime is 13478821091. The reversal of 13478821080 is 8012887431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197221 + ... + 256619.

It is an arithmetic number, because the mean of its divisors is an integer number (331452000).

Almost surely, 2^13478821080 is an apocalyptic number.

13478821080 is a gapful number since it is divisible by the number (10) 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 13478821080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21212928000).

13478821080 is an abundant number, since it is smaller than the sum of its proper divisors (28947034920).

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

13478821080 is a wasteful number, since it uses less digits than its factorization.

13478821080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59505 (or 59501 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The spelling of 13478821080 in words is "thirteen billion, four hundred seventy-eight million, eight hundred twenty-one thousand, eighty".