85947165887618 has 32 divisors (see below), whose sum is σ = 148927177290240. Its totient is φ = 36438456337920.

The previous prime is 85947165887593. The next prime is 85947165887651. The reversal of 85947165887618 is 81678856174958.

It is a super-2 number, since 2×85947165887618² (a number of 29 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 51314138 + ... + 52962581.

It is an arithmetic number, because the mean of its divisors is an integer number (4653974290320).

Almost surely, 2^{85947165887618} is an apocalyptic number.

85947165887618 is a deficient number, since it is larger than the sum of its proper divisors (62980011402622).

85947165887618 is a wasteful number, since it uses less digits than its factorization.

85947165887618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104277362.

The product of its digits is 6502809600, while the sum is 83.

The spelling of 85947165887618 in words is "eighty-five trillion, nine hundred forty-seven billion, one hundred sixty-five million, eight hundred eighty-seven thousand, six hundred eighteen".