85723939318 has 16 divisors (see below), whose sum is σ = 130306334256.
Its totient is φ = 42289853440.
The previous prime is 85723939309. The next prime is 85723939337. The reversal of 85723939318 is 81393932758.
It is a super-2 number, since 2×857239393182 (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, 212971 + ... + 465622.
It is an arithmetic number, because the mean of its divisors is an integer number (8144145891).
Almost surely, 285723939318 is an apocalyptic number.
85723939318 is a deficient number, since it is larger than the sum of its proper divisors (44582394938).
85723939318 is a wasteful number, since it uses less digits than its factorization.
85723939318 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 679439.
The product of its digits is 9797760, while the sum is 58.
The spelling of 85723939318 in words is "eighty-five billion, seven hundred twenty-three million, nine hundred thirty-nine thousand, three hundred eighteen".