19924899050 has 24 divisors (see below), whose sum is σ = 42354643296. Its totient is φ = 6831393840.

The previous prime is 19924899041. The next prime is 19924899053. The reversal of 19924899050 is 5099842991.

It is not an unprimeable number, because it can be changed into a prime (19924899053) 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 11 ways as a sum of consecutive naturals, for example, 28463792 + ... + 28464491.

It is an arithmetic number, because the mean of its divisors is an integer number (1764776804).

Almost surely, 2^19924899050 is an apocalyptic number.

19924899050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19924899050 is an abundant number, since it is smaller than the sum of its proper divisors (22429744246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19924899050 is a wasteful number, since it uses less digits than its factorization.

19924899050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56928302 (or 56928297 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 56.

The spelling of 19924899050 in words is "nineteen billion, nine hundred twenty-four million, eight hundred ninety-nine thousand, fifty".