19308938290 has 16 divisors (see below), whose sum is σ = 36585357120. Its totient is φ = 7317071280.

The previous prime is 19308938281. The next prime is 19308938293. The reversal of 19308938290 is 9283980391.

It is not an unprimeable number, because it can be changed into a prime (19308938293) 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, 50812806 + ... + 50813185.

It is an arithmetic number, because the mean of its divisors is an integer number (2286584820).

Almost surely, 2^19308938290 is an apocalyptic number.

19308938290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19308938290 is a deficient number, since it is larger than the sum of its proper divisors (17276418830).

19308938290 is a wasteful number, since it uses less digits than its factorization.

19308938290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101626017.

The product of its (nonzero) digits is 839808, while the sum is 52.

The spelling of 19308938290 in words is "nineteen billion, three hundred eight million, nine hundred thirty-eight thousand, two hundred ninety".