17218029939 has 8 divisors (see below), whose sum is σ = 25044407232. Its totient is φ = 10435169640.

The previous prime is 17218029887. The next prime is 17218029973. The reversal of 17218029939 is 93992081271.

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

It is not a de Polignac number, because 17218029939 - 2¹² = 17218025843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17218029891 and 17218029900.

It is not an unprimeable number, because it can be changed into a prime (17218025939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260879209 + ... + 260879274.

It is an arithmetic number, because the mean of its divisors is an integer number (3130550904).

Almost surely, 2^17218029939 is an apocalyptic number.

17218029939 is a deficient number, since it is larger than the sum of its proper divisors (7826377293).

17218029939 is a wasteful number, since it uses less digits than its factorization.

17218029939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521758497.

The product of its (nonzero) digits is 489888, while the sum is 51.

The spelling of 17218029939 in words is "seventeen billion, two hundred eighteen million, twenty-nine thousand, nine hundred thirty-nine".