17472008999 has 4 divisors (see below), whose sum is σ = 18391588440. Its totient is φ = 16552429560.

The previous prime is 17472008963. The next prime is 17472009011. The reversal of 17472008999 is 99980027471.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17472008999 is a prime.

It is a super-2 number, since 2×17472008999² (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 (17472008959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459789692 + ... + 459789729.

It is an arithmetic number, because the mean of its divisors is an integer number (4597897110).

Almost surely, 2^17472008999 is an apocalyptic number.

17472008999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

17472008999 is a deficient number, since it is larger than the sum of its proper divisors (919579441).

17472008999 is an equidigital number, since it uses as much as digits as its factorization.

17472008999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919579440.

The product of its (nonzero) digits is 2286144, while the sum is 56.

The spelling of 17472008999 in words is "seventeen billion, four hundred seventy-two million, eight thousand, nine hundred ninety-nine".