8426500128 has 36 divisors (see below), whose sum is σ = 23962860558. Its totient is φ = 2808833280.

The previous prime is 8426500111. The next prime is 8426500129. The reversal of 8426500128 is 8210056248.

8426500128 is a `hidden beast` number, since 8 + 4 + 26 + 500 + 128 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7446309264 + 980190864 = 86292^2 + 31308^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 8426500092 and 8426500101.

It is not an unprimeable number, because it can be changed into a prime (8426500129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14629053 + ... + 14629628.

Almost surely, 2^8426500128 is an apocalyptic number.

It is an amenable number.

8426500128 is an abundant number, since it is smaller than the sum of its proper divisors (15536360430).

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

8426500128 is a wasteful number, since it uses less digits than its factorization.

8426500128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29258697 (or 29258686 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 8426500128 is about 91795.9701076251. The cubic root of 8426500128 is about 2034.9281389343.

The spelling of 8426500128 in words is "eight billion, four hundred twenty-six million, five hundred thousand, one hundred twenty-eight".