19430189000730 has 48 divisors (see below), whose sum is σ = 50519582516520. Its totient is φ = 5181271824384.

The previous prime is 19430189000713. The next prime is 19430189000753. The reversal of 19430189000730 is 3700098103491.

19430189000730 is a `hidden beast` number, since 1 + 9 + 430 + 189 + 0 + 0 + 0 + 7 + 30 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 18291505798449 + 1138683202281 = 4276857^2 + 1067091^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1901154 + ... + 6517266.

Almost surely, 2^{19430189000730} is an apocalyptic number.

19430189000730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19430189000730 is an abundant number, since it is smaller than the sum of its proper divisors (31089393515790).

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

19430189000730 is a wasteful number, since it uses less digits than its factorization.

19430189000730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4662895 (or 4662892 counting only the distinct ones).

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

The spelling of 19430189000730 in words is "nineteen trillion, four hundred thirty billion, one hundred eighty-nine million, seven hundred thirty", and thus it is an aban number.