85254220799 has 16 divisors (see below), whose sum is σ = 95440736160. Its totient is φ = 75480384000.

The previous prime is 85254220789. The next prime is 85254220801. The reversal of 85254220799 is 99702245258.

It is a cyclic number.

It is not a de Polignac number, because 85254220799 - 2³² = 80959253503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85254220799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85254220789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90509 + ... + 422729.

It is an arithmetic number, because the mean of its divisors is an integer number (5965046010).

Almost surely, 2^85254220799 is an apocalyptic number.

85254220799 is a deficient number, since it is larger than the sum of its proper divisors (10186515361).

85254220799 is a wasteful number, since it uses less digits than its factorization.

85254220799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332842.

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 85254220799 in words is "eighty-five billion, two hundred fifty-four million, two hundred twenty thousand, seven hundred ninety-nine".