8834390312779 has 4 divisors (see below), whose sum is σ = 8834436371880. Its totient is φ = 8834344253680.

The previous prime is 8834390312771. The next prime is 8834390312809. The reversal of 8834390312779 is 9772130934388.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8834390312779 - 2³ = 8834390312771 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8834390312779.

It is not an unprimeable number, because it can be changed into a prime (8834390312771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22740634 + ... + 23125855.

It is an arithmetic number, because the mean of its divisors is an integer number (2208609092970).

Almost surely, 2^{8834390312779} is an apocalyptic number.

8834390312779 is a deficient number, since it is larger than the sum of its proper divisors (46059101).

8834390312779 is a wasteful number, since it uses less digits than its factorization.

8834390312779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46059100.

The product of its (nonzero) digits is 54867456, while the sum is 64.

The spelling of 8834390312779 in words is "eight trillion, eight hundred thirty-four billion, three hundred ninety million, three hundred twelve thousand, seven hundred seventy-nine".