19139109796 has 48 divisors (see below), whose sum is σ = 36517869360. Its totient is φ = 8741191680.

The previous prime is 19139109757. The next prime is 19139109823. The reversal of 19139109796 is 69790193191.

It can be written as a sum of positive squares in 8 ways, for example, as 36000000 + 19103109796 = 6000^2 + 138214^2 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 520300 + ... + 555868.

It is an arithmetic number, because the mean of its divisors is an integer number (760788945).

Almost surely, 2^19139109796 is an apocalyptic number.

It is an amenable number.

19139109796 is a deficient number, since it is larger than the sum of its proper divisors (17378759564).

19139109796 is a wasteful number, since it uses less digits than its factorization.

19139109796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35824 (or 35822 counting only the distinct ones).

The product of its (nonzero) digits is 826686, while the sum is 55.

The spelling of 19139109796 in words is "nineteen billion, one hundred thirty-nine million, one hundred nine thousand, seven hundred ninety-six".