85804640268634 has 16 divisors (see below), whose sum is σ = 147433377284928. Its totient is φ = 36688490194752.

The previous prime is 85804640268587. The next prime is 85804640268643. The reversal of 85804640268634 is 43686204640858.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 7077248992 + ... + 7077261115.

It is an arithmetic number, because the mean of its divisors is an integer number (9214586080308).

Almost surely, 2^{85804640268634} is an apocalyptic number.

85804640268634 is a deficient number, since it is larger than the sum of its proper divisors (61628737016294).

85804640268634 is a wasteful number, since it uses less digits than its factorization.

85804640268634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14154510549.

The product of its (nonzero) digits is 212336640, while the sum is 64.

The spelling of 85804640268634 in words is "eighty-five trillion, eight hundred four billion, six hundred forty million, two hundred sixty-eight thousand, six hundred thirty-four".