85905673742 has 64 divisors (see below), whose sum is σ = 161031701376. Its totient is φ = 33527623680.

The previous prime is 85905673741. The next prime is 85905673751. The reversal of 85905673742 is 24737650958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85905673741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1566938 + ... + 1620834.

It is an arithmetic number, because the mean of its divisors is an integer number (2516120334).

Almost surely, 2^85905673742 is an apocalyptic number.

85905673742 is a deficient number, since it is larger than the sum of its proper divisors (75126027634).

85905673742 is a wasteful number, since it uses less digits than its factorization.

85905673742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54141.

The product of its (nonzero) digits is 12700800, while the sum is 56.

The spelling of 85905673742 in words is "eighty-five billion, nine hundred five million, six hundred seventy-three thousand, seven hundred forty-two".