85780240008 has 64 divisors (see below), whose sum is σ = 215236104960. Its totient is φ = 28488830976.

The previous prime is 85780240001. The next prime is 85780240061. The reversal of 85780240008 is 80004208758.

It is not an unprimeable number, because it can be changed into a prime (85780240001) 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 15 ways as a sum of consecutive naturals, for example, 10891560 + ... + 10899432.

It is an arithmetic number, because the mean of its divisors is an integer number (3363064140).

Almost surely, 2^85780240008 is an apocalyptic number.

It is an amenable number.

85780240008 is an abundant number, since it is smaller than the sum of its proper divisors (129455864952).

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

85780240008 is a wasteful number, since it uses less digits than its factorization.

85780240008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9486 (or 9482 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 42.

The spelling of 85780240008 in words is "eighty-five billion, seven hundred eighty million, two hundred forty thousand, eight".