17992127472 has 120 divisors (see below), whose sum is σ = 51479955072. Its totient is φ = 5370076800.

The previous prime is 17992127437. The next prime is 17992127477. The reversal of 17992127472 is 27472129971.

It is a super-2 number, since 2×17992127472² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17992127477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2366397 + ... + 2373987.

Almost surely, 2^17992127472 is an apocalyptic number.

17992127472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 17992127472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25739977536).

17992127472 is an abundant number, since it is smaller than the sum of its proper divisors (33487827600).

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

17992127472 is a wasteful number, since it uses less digits than its factorization.

17992127472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7747 (or 7674 counting only the distinct ones).

The product of its digits is 889056, while the sum is 51.

The spelling of 17992127472 in words is "seventeen billion, nine hundred ninety-two million, one hundred twenty-seven thousand, four hundred seventy-two".