85626807940 has 12 divisors (see below), whose sum is σ = 179816296716. Its totient is φ = 34250723168.

The previous prime is 85626807923. The next prime is 85626807941. The reversal of 85626807940 is 4970862658.

It can be written as a sum of positive squares in 2 ways, for example, as 51209879616 + 34416928324 = 226296^2 + 185518^2 .

It is not an unprimeable number, because it can be changed into a prime (85626807941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2140670179 + ... + 2140670218.

It is an arithmetic number, because the mean of its divisors is an integer number (14984691393).

Almost surely, 2^85626807940 is an apocalyptic number.

It is an amenable number.

85626807940 is an abundant number, since it is smaller than the sum of its proper divisors (94189488776).

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

85626807940 is a wasteful number, since it uses less digits than its factorization.

85626807940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4281340406 (or 4281340404 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 85626807940 in words is "eighty-five billion, six hundred twenty-six million, eight hundred seven thousand, nine hundred forty".