13278126560 has 24 divisors (see below), whose sum is σ = 31369574376. Its totient is φ = 5311250560.

The previous prime is 13278126559. The next prime is 13278126569. The reversal of 13278126560 is 6562187231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13278126569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41493986 + ... + 41494305.

It is an arithmetic number, because the mean of its divisors is an integer number (1307065599).

Almost surely, 2^13278126560 is an apocalyptic number.

13278126560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13278126560 is an abundant number, since it is smaller than the sum of its proper divisors (18091447816).

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

13278126560 is an equidigital number, since it uses as much as digits as its factorization.

13278126560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82988306 (or 82988298 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 13278126560 in words is "thirteen billion, two hundred seventy-eight million, one hundred twenty-six thousand, five hundred sixty".