13276440000 has 560 divisors, whose sum is σ = 51418540800. Its totient is φ = 3348864000.

The previous prime is 13276439999. The next prime is 13276440041. The reversal of 13276440000 is 4467231.

13276440000 is a `hidden beast` number, since 13 + 2 + 7 + 644 + 0 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 20519677 + ... + 20520323.

Almost surely, 2^13276440000 is an apocalyptic number.

13276440000 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 13276440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25709270400).

13276440000 is an abundant number, since it is smaller than the sum of its proper divisors (38142100800).

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

13276440000 is an equidigital number, since it uses as much as digits as its factorization.

13276440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The spelling of 13276440000 in words is "thirteen billion, two hundred seventy-six million, four hundred forty thousand".