19029209472 has 640 divisors, whose sum is σ = 70829256960. Its totient is φ = 4958226432.

The previous prime is 19029209461. The next prime is 19029209513. The reversal of 19029209472 is 27490292091.

19029209472 is a `hidden beast` number, since 1 + 90 + 2 + 92 + 0 + 9 + 472 = 666.

It is a super-2 number, since 2×19029209472² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 229267543 + ... + 229267625.

It is an arithmetic number, because the mean of its divisors is an integer number (110670714).

Almost surely, 2^19029209472 is an apocalyptic number.

19029209472 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 19029209472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35414628480).

19029209472 is an abundant number, since it is smaller than the sum of its proper divisors (51800047488).

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

19029209472 is an frugal number, since it uses more digits than its factorization.

19029209472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 19029209472 in words is "nineteen billion, twenty-nine million, two hundred nine thousand, four hundred seventy-two".