85704566758 has 4 divisors (see below), whose sum is σ = 128556850140. Its totient is φ = 42852283378.

The previous prime is 85704566743. The next prime is 85704566771. The reversal of 85704566758 is 85766540758.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 85704566696 and 85704566705.

It is a congruent 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 as a sum of consecutive naturals, namely, 21426141688 + ... + 21426141691.

It is an arithmetic number, because the mean of its divisors is an integer number (32139212535).

Almost surely, 2^85704566758 is an apocalyptic number.

85704566758 is a deficient number, since it is larger than the sum of its proper divisors (42852283382).

85704566758 is a wasteful number, since it uses less digits than its factorization.

85704566758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42852283381.

The product of its (nonzero) digits is 56448000, while the sum is 61.

The spelling of 85704566758 in words is "eighty-five billion, seven hundred four million, five hundred sixty-six thousand, seven hundred fifty-eight".