12080761728 has 64 divisors (see below), whose sum is σ = 36673749120. Its totient is φ = 3451645440.

The previous prime is 12080761727. The next prime is 12080761729. The reversal of 12080761728 is 82716708021.

It is an interprime number because it is at equal distance from previous prime (12080761727) and next prime (12080761729).

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 12080761728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12080761727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2244478 + ... + 2249853.

It is an arithmetic number, because the mean of its divisors is an integer number (573027330).

Almost surely, 2^12080761728 is an apocalyptic number.

It is an amenable number.

12080761728 is an abundant number, since it is smaller than the sum of its proper divisors (24592987392).

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

12080761728 is an equidigital number, since it uses as much as digits as its factorization.

12080761728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4494355 (or 4494343 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 42.

The spelling of 12080761728 in words is "twelve billion, eighty million, seven hundred sixty-one thousand, seven hundred twenty-eight".