19844225770 has 16 divisors (see below), whose sum is σ = 35906623488. Its totient is φ = 7896130960.

The previous prime is 19844225767. The next prime is 19844225771. The reversal of 19844225770 is 7752244891.

It is not an unprimeable number, because it can be changed into a prime (19844225771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5192914 + ... + 5196733.

It is an arithmetic number, because the mean of its divisors is an integer number (2244163968).

Almost surely, 2^19844225770 is an apocalyptic number.

19844225770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19844225770 is a deficient number, since it is larger than the sum of its proper divisors (16062397718).

19844225770 is a wasteful number, since it uses less digits than its factorization.

19844225770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10389845.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 19844225770 in words is "nineteen billion, eight hundred forty-four million, two hundred twenty-five thousand, seven hundred seventy".