844816980613 has 16 divisors (see below), whose sum is σ = 850039407360. Its totient is φ = 839614636224.

The previous prime is 844816980589. The next prime is 844816980617. The reversal of 844816980613 is 316089618448.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-844816980613 is a prime.

It is a super-3 number, since 3×844816980613³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844816980617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220980820 + ... + 220984642.

It is an arithmetic number, because the mean of its divisors is an integer number (53127462960).

Almost surely, 2^844816980613 is an apocalyptic number.

It is an amenable number.

844816980613 is a deficient number, since it is larger than the sum of its proper divisors (5222426747).

844816980613 is a wasteful number, since it uses less digits than its factorization.

844816980613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6108.

The product of its (nonzero) digits is 7962624, while the sum is 58.

The spelling of 844816980613 in words is "eight hundred forty-four billion, eight hundred sixteen million, nine hundred eighty thousand, six hundred thirteen".