7686826128 has 50 divisors (see below), whose sum is σ = 22247908694. Its totient is φ = 2562274944.

The previous prime is 7686826127. The next prime is 7686826139. The reversal of 7686826128 is 8216286867.

It can be written as a sum of positive squares in only one way, i.e., 6754867344 + 931958784 = 82188^2 + 30528^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (7686826127) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2964301 + ... + 2966892.

Almost surely, 2^7686826128 is an apocalyptic number.

It is an amenable number.

7686826128 is an abundant number, since it is smaller than the sum of its proper divisors (14561082566).

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

7686826128 is a wasteful number, since it uses less digits than its factorization.

7686826128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5931213 (or 5931198 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 7686826128 is about 87674.5466369801. The cubic root of 7686826128 is about 1973.5540238427.

The spelling of 7686826128 in words is "seven billion, six hundred eighty-six million, eight hundred twenty-six thousand, one hundred twenty-eight".