85857293650 has 24 divisors (see below), whose sum is σ = 159713258724. Its totient is φ = 34338897600.

The previous prime is 85857293633. The next prime is 85857293671. The reversal of 85857293650 is 5639275858.

It can be written as a sum of positive squares in 6 ways, for example, as 21080426481 + 64776867169 = 145191^2 + 254513^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 351024 + ... + 543076.

Almost surely, 2^85857293650 is an apocalyptic number.

85857293650 is a deficient number, since it is larger than the sum of its proper divisors (73855965074).

85857293650 is a wasteful number, since it uses less digits than its factorization.

85857293650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201006 (or 201001 counting only the distinct ones).

The product of its (nonzero) digits is 18144000, while the sum is 58.

The spelling of 85857293650 in words is "eighty-five billion, eight hundred fifty-seven million, two hundred ninety-three thousand, six hundred fifty".