85374871556 has 24 divisors (see below), whose sum is σ = 170363433240. Its totient is φ = 37085916672.

The previous prime is 85374871537. The next prime is 85374871579. The reversal of 85374871556 is 65517847358.

It can be written as a sum of positive squares in 4 ways, for example, as 17858045956 + 67516825600 = 133634^2 + 259840^2 .

It is a super-2 number, since 2×85374871556² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85374871495 and 85374871504.

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, 48288071 + ... + 48289838.

It is an arithmetic number, because the mean of its divisors is an integer number (7098476385).

Almost surely, 2^85374871556 is an apocalyptic number.

It is an amenable number.

85374871556 is a deficient number, since it is larger than the sum of its proper divisors (84988561684).

85374871556 is a wasteful number, since it uses less digits than its factorization.

85374871556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96577943 (or 96577941 counting only the distinct ones).

The product of its digits is 28224000, while the sum is 59.

The spelling of 85374871556 in words is "eighty-five billion, three hundred seventy-four million, eight hundred seventy-one thousand, five hundred fifty-six".