19027530720 has 576 divisors, whose sum is σ = 74204424000. Its totient is φ = 4549754880.

The previous prime is 19027530607. The next prime is 19027530773. The reversal of 19027530720 is 2703572091.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 46521876 + ... + 46522284.

It is an arithmetic number, because the mean of its divisors is an integer number (128827125).

Almost surely, 2^19027530720 is an apocalyptic number.

19027530720 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 19027530720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37102212000).

19027530720 is an abundant number, since it is smaller than the sum of its proper divisors (55176893280).

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

19027530720 is a wasteful number, since it uses less digits than its factorization.

19027530720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The spelling of 19027530720 in words is "nineteen billion, twenty-seven million, five hundred thirty thousand, seven hundred twenty".