8078105644 has 24 divisors (see below), whose sum is σ = 16316179488. Its totient is φ = 3427766400.

The previous prime is 8078105639. The next prime is 8078105657. The reversal of 8078105644 is 4465018708.

It is a self number, because there is not a number n which added to its sum of digits gives 8078105644.

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 7 ways as a sum of consecutive naturals, for example, 1425409 + ... + 1431064.

It is an arithmetic number, because the mean of its divisors is an integer number (679840812).

Almost surely, 2^8078105644 is an apocalyptic number.

It is an amenable number.

8078105644 is an abundant number, since it is smaller than the sum of its proper divisors (8238073844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8078105644 is a wasteful number, since it uses less digits than its factorization.

8078105644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856585 (or 2856583 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 8078105644 is about 89878.2823823420. The cubic root of 8078105644 is about 2006.4877355542.

The spelling of 8078105644 in words is "eight billion, seventy-eight million, one hundred five thousand, six hundred forty-four".