84688628268865 has 8 divisors (see below), whose sum is σ = 101626465508928. Its totient is φ = 67750828224240.

The previous prime is 84688628268823. The next prime is 84688628268883. The reversal of 84688628268865 is 56886282688648.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84688628268865 - 2²³ = 84688619880257 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 4017037 + ... + 13620346.

It is an arithmetic number, because the mean of its divisors is an integer number (12703308188616).

Almost surely, 2^{84688628268865} is an apocalyptic number.

It is an amenable number.

84688628268865 is a deficient number, since it is larger than the sum of its proper divisors (16937837240063).

84688628268865 is a wasteful number, since it uses less digits than its factorization.

84688628268865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18597719.

The product of its digits is 27179089920, while the sum is 85.

The spelling of 84688628268865 in words is "eighty-four trillion, six hundred eighty-eight billion, six hundred twenty-eight million, two hundred sixty-eight thousand, eight hundred sixty-five".