6117789567845 has 8 divisors (see below), whose sum is σ = 7342378467480. Its totient is φ = 4893544330240.

The previous prime is 6117789567797. The next prime is 6117789567859. The reversal of 6117789567845 is 5487659877116.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 894110189476 + 5223679378369 = 945574^2 + 2285537^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6117789567845 - 2²⁴ = 6117772790629 is a prime.

It is a super-2 number, since 2×6117789567845² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 85876340 + ... + 85947549.

It is an arithmetic number, because the mean of its divisors is an integer number (917797308435).

Almost surely, 2^{6117789567845} is an apocalyptic number.

It is an amenable number.

6117789567845 is a deficient number, since it is larger than the sum of its proper divisors (1224588899635).

6117789567845 is a wasteful number, since it uses less digits than its factorization.

6117789567845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171831015.

The product of its digits is 711244800, while the sum is 74.

The spelling of 6117789567845 in words is "six trillion, one hundred seventeen billion, seven hundred eighty-nine million, five hundred sixty-seven thousand, eight hundred forty-five".