85447600812 has 360 divisors, whose sum is σ = 274939249200. Its totient is φ = 23009059584.

The previous prime is 85447600807. The next prime is 85447600853. The reversal of 85447600812 is 21800674458.

It is an unprimeable number.

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 119 ways as a sum of consecutive naturals, for example, 69075858 + ... + 69077094.

Almost surely, 2^85447600812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85447600812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137469624600).

85447600812 is an abundant number, since it is smaller than the sum of its proper divisors (189491648388).

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

85447600812 is a wasteful number, since it uses less digits than its factorization.

85447600812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515 (or 1497 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 85447600812 in words is "eighty-five billion, four hundred forty-seven million, six hundred thousand, eight hundred twelve".