17993536519 has 12 divisors (see below), whose sum is σ = 20933625744. Its totient is φ = 15421285824.

The previous prime is 17993536471. The next prime is 17993536523. The reversal of 17993536519 is 91563539971.

It is not a de Polignac number, because 17993536519 - 2¹⁷ = 17993405447 is a prime.

It is a super-2 number, since 2×17993536519² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17993536529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 609999 + ... + 638815.

It is an arithmetic number, because the mean of its divisors is an integer number (1744468812).

Almost surely, 2^17993536519 is an apocalyptic number.

17993536519 is a deficient number, since it is larger than the sum of its proper divisors (2940089225).

17993536519 is a wasteful number, since it uses less digits than its factorization.

17993536519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41574 (or 41567 counting only the distinct ones).

The product of its digits is 6889050, while the sum is 58.

The spelling of 17993536519 in words is "seventeen billion, nine hundred ninety-three million, five hundred thirty-six thousand, five hundred nineteen".