17004519981 has 24 divisors (see below), whose sum is σ = 24831870336. Its totient is φ = 11212109280.

The previous prime is 17004519971. The next prime is 17004520021. The reversal of 17004519981 is 18991540071.

It is a happy number.

It is not a de Polignac number, because 17004519981 - 2¹⁷ = 17004388909 is a prime.

It is a super-2 number, since 2×17004519981² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17004519911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 749896 + ... + 772238.

It is an arithmetic number, because the mean of its divisors is an integer number (1034661264).

Almost surely, 2^17004519981 is an apocalyptic number.

It is an amenable number.

17004519981 is a deficient number, since it is larger than the sum of its proper divisors (7827350355).

17004519981 is a wasteful number, since it uses less digits than its factorization.

17004519981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23273 (or 23270 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 45.

The spelling of 17004519981 in words is "seventeen billion, four million, five hundred nineteen thousand, nine hundred eighty-one".