917936845946 has 8 divisors (see below), whose sum is σ = 1377037809504. Its totient is φ = 458924242780.

The previous prime is 917936845897. The next prime is 917936845949. The reversal of 917936845946 is 649548639719.

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

It is a self number, because there is not a number n which added to its sum of digits gives 917936845946.

It is not an unprimeable number, because it can be changed into a prime (917936845949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22064120 + ... + 22105683.

It is an arithmetic number, because the mean of its divisors is an integer number (172129726188).

Almost surely, 2^917936845946 is an apocalyptic number.

917936845946 is a deficient number, since it is larger than the sum of its proper divisors (459100963558).

917936845946 is a wasteful number, since it uses less digits than its factorization.

917936845946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44180196.

The product of its digits is 352719360, while the sum is 71.

The spelling of 917936845946 in words is "nine hundred seventeen billion, nine hundred thirty-six million, eight hundred forty-five thousand, nine hundred forty-six".