12019175424 has 117 divisors (see below), whose sum is σ = 34778732079. Its totient is φ = 3999375360.

The previous prime is 12019175393. The next prime is 12019175429. The reversal of 12019175424 is 42457191021.

The square root of 12019175424 is 109632.

It is a perfect power (a square), and thus also a powerful number.

12019175424 is a `hidden beast` number, since 1 + 20 + 1 + 91 + 7 + 542 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12019175429) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 21049059 + ... + 21049629.

Almost surely, 2^12019175424 is an apocalyptic number.

12019175424 is the 109632-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12019175424

12019175424 is an abundant number, since it is smaller than the sum of its proper divisors (22759556655).

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

12019175424 is an frugal number, since it uses more digits than its factorization.

12019175424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172 (or 576 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

Multiplying 12019175424 by its sum of digits (36), we get a square (432690315264 = 657792²).

12019175424 divided by its sum of digits (36) gives a square (333865984 = 18272²).

The spelling of 12019175424 in words is "twelve billion, nineteen million, one hundred seventy-five thousand, four hundred twenty-four".