19474072560 has 240 divisors, whose sum is σ = 69390139104. Its totient is φ = 4877549568.

The previous prime is 19474072549. The next prime is 19474072567. The reversal of 19474072560 is 6527047491.

19474072560 is a `hidden beast` number, since 1 + 9 + 47 + 40 + 7 + 2 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19474072567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7256979 + ... + 7259661.

Almost surely, 2^19474072560 is an apocalyptic number.

19474072560 is a gapful number since it is divisible by the number (10) 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 19474072560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34695069552).

19474072560 is an abundant number, since it is smaller than the sum of its proper divisors (49916066544).

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

19474072560 is a wasteful number, since it uses less digits than its factorization.

19474072560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312 (or 3303 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 19474072560 in words is "nineteen billion, four hundred seventy-four million, seventy-two thousand, five hundred sixty".