17218152012 has 24 divisors (see below), whose sum is σ = 40355854336. Its totient is φ = 5713645968.

The previous prime is 17218151957. The next prime is 17218152031. The reversal of 17218152012 is 21025181271.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3214468 + ... + 3219819.

Almost surely, 2^17218152012 is an apocalyptic number.

17218152012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

17218152012 is an abundant number, since it is smaller than the sum of its proper divisors (23137702324).

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

17218152012 is a wasteful number, since it uses less digits than its factorization.

17218152012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6434517 (or 6434515 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 30.

The spelling of 17218152012 in words is "seventeen billion, two hundred eighteen million, one hundred fifty-two thousand, twelve".