82089128008 has 8 divisors (see below), whose sum is σ = 153917115030. Its totient is φ = 41044564000.

The previous prime is 82089128003. The next prime is 82089128021. The reversal of 82089128008 is 80082198028.

It can be written as a sum of positive squares in only one way, i.e., 81957383524 + 131744484 = 286282^2 + 11478^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×82089128008² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82089128003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5130570493 + ... + 5130570508.

Almost surely, 2^82089128008 is an apocalyptic number.

It is an amenable number.

82089128008 is a deficient number, since it is larger than the sum of its proper divisors (71827987022).

82089128008 is a wasteful number, since it uses less digits than its factorization.

82089128008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10261141007 (or 10261141003 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 46.

The spelling of 82089128008 in words is "eighty-two billion, eighty-nine million, one hundred twenty-eight thousand, eight".