19281353134530 has 16 divisors (see below), whose sum is σ = 46275247522944. Its totient is φ = 5141694169200.

The previous prime is 19281353134469. The next prime is 19281353134531. The reversal of 19281353134530 is 3543135318291.

It is a self number, because there is not a number n which added to its sum of digits gives 19281353134530.

It is not an unprimeable number, because it can be changed into a prime (19281353134531) 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 7 ways as a sum of consecutive naturals, for example, 321355885546 + ... + 321355885605.

It is an arithmetic number, because the mean of its divisors is an integer number (2892202970184).

Almost surely, 2^{19281353134530} is an apocalyptic number.

19281353134530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19281353134530 is an abundant number, since it is smaller than the sum of its proper divisors (26993894388414).

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

19281353134530 is a wasteful number, since it uses less digits than its factorization.

19281353134530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642711771161.

The product of its (nonzero) digits is 1166400, while the sum is 48.

The spelling of 19281353134530 in words is "nineteen trillion, two hundred eighty-one billion, three hundred fifty-three million, one hundred thirty-four thousand, five hundred thirty".