85812082120 has 16 divisors (see below), whose sum is σ = 193077184860. Its totient is φ = 34324832832.

The previous prime is 85812082099. The next prime is 85812082157. The reversal of 85812082120 is 2128021858.

It can be written as a sum of positive squares in 2 ways, for example, as 79004842084 + 6807240036 = 281078^2 + 82506^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 85812082120.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1072650987 + ... + 1072651066.

Almost surely, 2^85812082120 is an apocalyptic number.

It is an amenable number.

85812082120 is an abundant number, since it is smaller than the sum of its proper divisors (107265102740).

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

85812082120 is a wasteful number, since it uses less digits than its factorization.

85812082120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145302064 (or 2145302060 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 37.

The spelling of 85812082120 in words is "eighty-five billion, eight hundred twelve million, eighty-two thousand, one hundred twenty".