85644341608 has 16 divisors (see below), whose sum is σ = 183523589280. Its totient is φ = 36704717808.

The previous prime is 85644341603. The next prime is 85644341609. The reversal of 85644341608 is 80614344658.

It is not an unprimeable number, because it can be changed into a prime (85644341603) 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, 764681566 + ... + 764681677.

It is an arithmetic number, because the mean of its divisors is an integer number (11470224330).

Almost surely, 2^85644341608 is an apocalyptic number.

It is an amenable number.

85644341608 is an abundant number, since it is smaller than the sum of its proper divisors (97879247672).

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

85644341608 is a wasteful number, since it uses less digits than its factorization.

85644341608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529363256 (or 1529363252 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 49.

The spelling of 85644341608 in words is "eighty-five billion, six hundred forty-four million, three hundred forty-one thousand, six hundred eight".