8917579985496 has 512 divisors, whose sum is σ = 27939244032000. Its totient is φ = 2309521766400.

The previous prime is 8917579985467. The next prime is 8917579985533. The reversal of 8917579985496 is 6945899757198.

It is a happy number.

It is a super-3 number, since 3×8917579985496³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 17050821891 + ... + 17050822413.

It is an arithmetic number, because the mean of its divisors is an integer number (54568836000).

Almost surely, 2^{8917579985496} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8917579985496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13969622016000).

8917579985496 is an abundant number, since it is smaller than the sum of its proper divisors (19021664046504).

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

8917579985496 is a wasteful number, since it uses less digits than its factorization.

8917579985496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199 (or 1195 counting only the distinct ones).

The product of its digits is 12345177600, while the sum is 87.

The spelling of 8917579985496 in words is "eight trillion, nine hundred seventeen billion, five hundred seventy-nine million, nine hundred eighty-five thousand, four hundred ninety-six".