19408729150 has 24 divisors (see below), whose sum is σ = 38223781200. Its totient is φ = 7306815360.

The previous prime is 19408729103. The next prime is 19408729163. The reversal of 19408729150 is 5192780491.

It is a self number, because there is not a number n which added to its sum of digits gives 19408729150.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 11416050 + ... + 11417749.

It is an arithmetic number, because the mean of its divisors is an integer number (1592657550).

Almost surely, 2^19408729150 is an apocalyptic number.

19408729150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19408729150 is a deficient number, since it is larger than the sum of its proper divisors (18815052050).

19408729150 is a wasteful number, since it uses less digits than its factorization.

19408729150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22833828 (or 22833823 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 46.

The spelling of 19408729150 in words is "nineteen billion, four hundred eight million, seven hundred twenty-nine thousand, one hundred fifty".