85744729174 has 16 divisors (see below), whose sum is σ = 138533320800. Its totient is φ = 39568032000.

The previous prime is 85744729153. The next prime is 85744729199. The reversal of 85744729174 is 47192744758.

It is a super-2 number, since 2×85744729174² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104827 + ... + 427174.

It is an arithmetic number, because the mean of its divisors is an integer number (8658332550).

Almost surely, 2^85744729174 is an apocalyptic number.

85744729174 is a deficient number, since it is larger than the sum of its proper divisors (52788591626).

85744729174 is a wasteful number, since it uses less digits than its factorization.

85744729174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538215.

The product of its digits is 15805440, while the sum is 58.

The spelling of 85744729174 in words is "eighty-five billion, seven hundred forty-four million, seven hundred twenty-nine thousand, one hundred seventy-four".