19138409110 has 16 divisors (see below), whose sum is σ = 36262249200. Its totient is φ = 7252449696.

The previous prime is 19138409093. The next prime is 19138409111. The reversal of 19138409110 is 1190483191.

It is a self number, because there is not a number n which added to its sum of digits gives 19138409110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19138409111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50364045 + ... + 50364424.

It is an arithmetic number, because the mean of its divisors is an integer number (2266390575).

Almost surely, 2^19138409110 is an apocalyptic number.

19138409110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19138409110 is a deficient number, since it is larger than the sum of its proper divisors (17123840090).

19138409110 is a wasteful number, since it uses less digits than its factorization.

19138409110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100728495.

The product of its (nonzero) digits is 7776, while the sum is 37.

The spelling of 19138409110 in words is "nineteen billion, one hundred thirty-eight million, four hundred nine thousand, one hundred ten".