13321547712 has 392 divisors, whose sum is σ = 43835403312. Its totient is φ = 3981312000.

The previous prime is 13321547711. The next prime is 13321547717. The reversal of 13321547712 is 21774512331.

13321547712 is a `hidden beast` number, since 13 + 32 + 1 + 547 + 71 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321547711) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 51834688 + ... + 51834944.

Almost surely, 2^13321547712 is an apocalyptic number.

13321547712 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 13321547712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21917701656).

13321547712 is an abundant number, since it is smaller than the sum of its proper divisors (30513855600).

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

13321547712 is a wasteful number, since it uses less digits than its factorization.

13321547712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399 (or 374 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The spelling of 13321547712 in words is "thirteen billion, three hundred twenty-one million, five hundred forty-seven thousand, seven hundred twelve".