616727838865 has 16 divisors (see below), whose sum is σ = 764064299520. Its totient is φ = 477393240960.

The previous prime is 616727838827. The next prime is 616727838871. The reversal of 616727838865 is 568838727616.

It is not a de Polignac number, because 616727838865 - 2¹¹ = 616727836817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 616727838865.

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 15 ways as a sum of consecutive naturals, for example, 715342 + ... + 1321048.

It is an arithmetic number, because the mean of its divisors is an integer number (47754018720).

Almost surely, 2^616727838865 is an apocalyptic number.

It is an amenable number.

616727838865 is a deficient number, since it is larger than the sum of its proper divisors (147336460655).

616727838865 is a wasteful number, since it uses less digits than its factorization.

616727838865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612312.

The product of its digits is 162570240, while the sum is 67.

The spelling of 616727838865 in words is "six hundred sixteen billion, seven hundred twenty-seven million, eight hundred thirty-eight thousand, eight hundred sixty-five".