19524219372 has 96 divisors (see below), whose sum is σ = 57911293440. Its totient is φ = 5572393920.

The previous prime is 19524219361. The next prime is 19524219383. The reversal of 19524219372 is 27391242591.

19524219372 is a `hidden beast` number, since 19 + 52 + 4 + 219 + 372 = 666.

It is an interprime number because it is at equal distance from previous prime (19524219361) and next prime (19524219383).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 720778 + ... + 747374.

It is an arithmetic number, because the mean of its divisors is an integer number (603242640).

Almost surely, 2^19524219372 is an apocalyptic number.

19524219372 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 19524219372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28955646720).

19524219372 is an abundant number, since it is smaller than the sum of its proper divisors (38387074068).

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

19524219372 is a wasteful number, since it uses less digits than its factorization.

19524219372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27588 (or 27580 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The spelling of 19524219372 in words is "nineteen billion, five hundred twenty-four million, two hundred nineteen thousand, three hundred seventy-two".