85623845757 has 16 divisors (see below), whose sum is σ = 116130094080. Its totient is φ = 56100580272.

The previous prime is 85623845729. The next prime is 85623845759. The reversal of 85623845757 is 75754832658.

It is not a de Polignac number, because 85623845757 - 2¹² = 85623841661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85623845757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85623845759) 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, 648108 + ... + 768954.

It is an arithmetic number, because the mean of its divisors is an integer number (7258130880).

Almost surely, 2^85623845757 is an apocalyptic number.

It is an amenable number.

85623845757 is a deficient number, since it is larger than the sum of its proper divisors (30506248323).

85623845757 is a wasteful number, since it uses less digits than its factorization.

85623845757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124912.

The product of its digits is 56448000, while the sum is 60.

The spelling of 85623845757 in words is "eighty-five billion, six hundred twenty-three million, eight hundred forty-five thousand, seven hundred fifty-seven".