19741922736 has 20 divisors (see below), whose sum is σ = 50999967192. Its totient is φ = 6580640896.

The previous prime is 19741922731. The next prime is 19741922737. The reversal of 19741922736 is 63722914791.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (19741922731) 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 3 ways as a sum of consecutive naturals, for example, 205644981 + ... + 205645076.

Almost surely, 2^19741922736 is an apocalyptic number.

19741922736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19741922736 is an abundant number, since it is smaller than the sum of its proper divisors (31258044456).

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

19741922736 is a wasteful number, since it uses less digits than its factorization.

19741922736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411290068 (or 411290062 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 51.

The spelling of 19741922736 in words is "nineteen billion, seven hundred forty-one million, nine hundred twenty-two thousand, seven hundred thirty-six".