8128468756 has 12 divisors (see below), whose sum is σ = 14285872692. Its totient is φ = 4046790848.

The previous prime is 8128468753. The next prime is 8128468771. The reversal of 8128468756 is 6578648218.

It can be written as a sum of positive squares in 2 ways, for example, as 1422496656 + 6705972100 = 37716^2 + 81890^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8128468697 and 8128468706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8128468753) 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, 4359835 + ... + 4361698.

It is an arithmetic number, because the mean of its divisors is an integer number (1190489391).

Almost surely, 2^8128468756 is an apocalyptic number.

It is an amenable number.

8128468756 is a deficient number, since it is larger than the sum of its proper divisors (6157403936).

8128468756 is a wasteful number, since it uses less digits than its factorization.

8128468756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8721770 (or 8721768 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 55.

The square root of 8128468756 is about 90158.0210297453. The cubic root of 8128468756 is about 2010.6489291881.

The spelling of 8128468756 in words is "eight billion, one hundred twenty-eight million, four hundred sixty-eight thousand, seven hundred fifty-six".