1008817245865 has 16 divisors (see below), whose sum is σ = 1422220677696. Its totient is φ = 677247940800.

The previous prime is 1008817245851. The next prime is 1008817245881. The reversal of 1008817245865 is 5685427188001.

1008817245865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1008817245865 - 2¹⁵ = 1008817213097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 705465891 + ... + 705467320.

It is an arithmetic number, because the mean of its divisors is an integer number (88888792356).

Almost surely, 2^{1008817245865} is an apocalyptic number.

It is an amenable number.

1008817245865 is a deficient number, since it is larger than the sum of its proper divisors (413403431831).

1008817245865 is a wasteful number, since it uses less digits than its factorization.

1008817245865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410933240.

The product of its (nonzero) digits is 4300800, while the sum is 55.

The spelling of 1008817245865 in words is "one trillion, eight billion, eight hundred seventeen million, two hundred forty-five thousand, eight hundred sixty-five".