1078865308205 has 16 divisors (see below), whose sum is σ = 1339887258864. Its totient is φ = 833360363520.

The previous prime is 1078865308193. The next prime is 1078865308219. The reversal of 1078865308205 is 5028035688701.

1078865308205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 140256991081 + 938608317124 = 374509^2 + 968818^2 .

It is not a de Polignac number, because 1078865308205 - 2⁴ = 1078865308189 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 27107732 + ... + 27147501.

It is an arithmetic number, because the mean of its divisors is an integer number (83742953679).

Almost surely, 2^{1078865308205} is an apocalyptic number.

It is an amenable number.

1078865308205 is a deficient number, since it is larger than the sum of its proper divisors (261021950659).

1078865308205 is an equidigital number, since it uses as much as digits as its factorization.

1078865308205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54255376.

The product of its (nonzero) digits is 3225600, while the sum is 53.

The spelling of 1078865308205 in words is "one trillion, seventy-eight billion, eight hundred sixty-five million, three hundred eight thousand, two hundred five".