85684144652 has 12 divisors (see below), whose sum is σ = 150069269280. Its totient is φ = 42807210576.

The previous prime is 85684144621. The next prime is 85684144673. The reversal of 85684144652 is 25644148658.

It is a super-2 number, since 2×85684144652² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85684144594 and 85684144603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8709908 + ... + 8719739.

It is an arithmetic number, because the mean of its divisors is an integer number (12505772440).

Almost surely, 2^85684144652 is an apocalyptic number.

It is an amenable number.

85684144652 is a deficient number, since it is larger than the sum of its proper divisors (64385124628).

85684144652 is a wasteful number, since it uses less digits than its factorization.

85684144652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17430880 (or 17430878 counting only the distinct ones).

The product of its digits is 7372800, while the sum is 53.

The spelling of 85684144652 in words is "eighty-five billion, six hundred eighty-four million, one hundred forty-four thousand, six hundred fifty-two".