17712989472 has 48 divisors (see below), whose sum is σ = 46509567552. Its totient is φ = 5902682880.

The previous prime is 17712989449. The next prime is 17712989479. The reversal of 17712989472 is 27498921771.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (17712989479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348397 + ... + 395987.

It is an arithmetic number, because the mean of its divisors is an integer number (968949324).

Almost surely, 2^17712989472 is an apocalyptic number.

17712989472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

17712989472 is an abundant number, since it is smaller than the sum of its proper divisors (28796578080).

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

17712989472 is a wasteful number, since it uses less digits than its factorization.

17712989472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51481 (or 51473 counting only the distinct ones).

The product of its digits is 3556224, while the sum is 57.

The spelling of 17712989472 in words is "seventeen billion, seven hundred twelve million, nine hundred eighty-nine thousand, four hundred seventy-two".