17417987982 has 16 divisors (see below), whose sum is σ = 38706640080. Its totient is φ = 5805995976.

The previous prime is 17417987981. The next prime is 17417987987. The reversal of 17417987982 is 28978971471.

It is a super-4 number, since 4×17417987982⁴ (a number of 42 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17417987981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161277613 + ... + 161277720.

It is an arithmetic number, because the mean of its divisors is an integer number (2419165005).

Almost surely, 2^17417987982 is an apocalyptic number.

17417987982 is an abundant number, since it is smaller than the sum of its proper divisors (21288652098).

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

17417987982 is a wasteful number, since it uses less digits than its factorization.

17417987982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322555344 (or 322555338 counting only the distinct ones).

The product of its digits is 14224896, while the sum is 63.

The spelling of 17417987982 in words is "seventeen billion, four hundred seventeen million, nine hundred eighty-seven thousand, nine hundred eighty-two".