85397017570 has 16 divisors (see below), whose sum is σ = 153990610488. Its totient is φ = 34097478400.

The previous prime is 85397017553. The next prime is 85397017621. The reversal of 85397017570 is 7571079358.

It can be written as a sum of positive squares in 4 ways, for example, as 51265563561 + 34131454009 = 226419^2 + 184747^2 .

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, 7660231 + ... + 7671370.

Almost surely, 2^85397017570 is an apocalyptic number.

85397017570 is a deficient number, since it is larger than the sum of its proper divisors (68593592918).

85397017570 is a wasteful number, since it uses less digits than its factorization.

85397017570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15332165.

The product of its (nonzero) digits is 1852200, while the sum is 52.

The spelling of 85397017570 in words is "eighty-five billion, three hundred ninety-seven million, seventeen thousand, five hundred seventy".