19138384092 has 24 divisors (see below), whose sum is σ = 44736417936. Its totient is φ = 6368005888.

The previous prime is 19138384073. The next prime is 19138384093. The reversal of 19138384092 is 29048383191.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19138384093) 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, 1424973 + ... + 1438340.

It is an arithmetic number, because the mean of its divisors is an integer number (1864017414).

Almost surely, 2^19138384092 is an apocalyptic number.

19138384092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19138384092 is an abundant number, since it is smaller than the sum of its proper divisors (25598033844).

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

19138384092 is a wasteful number, since it uses less digits than its factorization.

19138384092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2863877 (or 2863875 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

Subtracting 19138384092 from its reverse (29048383191), we obtain a palindrome (9909999099).

The spelling of 19138384092 in words is "nineteen billion, one hundred thirty-eight million, three hundred eighty-four thousand, ninety-two".