12711928320 has 1280 divisors, whose sum is σ = 58076282880. Its totient is φ = 2563964928.

The previous prime is 12711928319. The next prime is 12711928337. The reversal of 12711928320 is 2382911721.

It is a tau number, because it is divible by the number of its divisors (1280).

It is a super-2 number, since 2×12711928320² (a number of 21 digits) contains 22 as substring.

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

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 270466537 + ... + 270466583.

It is an arithmetic number, because the mean of its divisors is an integer number (45372096).

Almost surely, 2^12711928320 is an apocalyptic number.

12711928320 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 12711928320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29038141440).

12711928320 is an abundant number, since it is smaller than the sum of its proper divisors (45364354560).

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

12711928320 is a wasteful number, since it uses less digits than its factorization.

12711928320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 12711928320 in words is "twelve billion, seven hundred eleven million, nine hundred twenty-eight thousand, three hundred twenty".