85358218690 has 32 divisors (see below), whose sum is σ = 154095514560. Its totient is φ = 34043279424.

The previous prime is 85358218661. The next prime is 85358218727. The reversal of 85358218690 is 9681285358.

It is a super-3 number, since 3×85358218690³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

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, 4833657 + ... + 4851283.

It is an arithmetic number, because the mean of its divisors is an integer number (4815484830).

Almost surely, 2^85358218690 is an apocalyptic number.

85358218690 is a deficient number, since it is larger than the sum of its proper divisors (68737295870).

85358218690 is a wasteful number, since it uses less digits than its factorization.

85358218690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19026.

The product of its (nonzero) digits is 4147200, while the sum is 55.

The spelling of 85358218690 in words is "eighty-five billion, three hundred fifty-eight million, two hundred eighteen thousand, six hundred ninety".