85739487273 has 12 divisors (see below), whose sum is σ = 135104646768. Its totient is φ = 51963325560.

The previous prime is 85739487263. The next prime is 85739487289. The reversal of 85739487273 is 37278493758.

85739487273 is a `hidden beast` number, since 8 + 57 + 39 + 487 + 2 + 73 = 666.

It is not a de Polignac number, because 85739487273 - 2²¹ = 85737390121 is a prime.

It is a super-3 number, since 3×85739487273³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85739487273.

It is not an unprimeable number, because it can be changed into a prime (85739487203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 433027615 + ... + 433027812.

It is an arithmetic number, because the mean of its divisors is an integer number (11258720564).

Almost surely, 2^85739487273 is an apocalyptic number.

It is an amenable number.

85739487273 is a deficient number, since it is larger than the sum of its proper divisors (49365159495).

85739487273 is a wasteful number, since it uses less digits than its factorization.

85739487273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866055444 (or 866055441 counting only the distinct ones).

The product of its digits is 71124480, while the sum is 63.

The spelling of 85739487273 in words is "eighty-five billion, seven hundred thirty-nine million, four hundred eighty-seven thousand, two hundred seventy-three".