19293943924 has 12 divisors (see below), whose sum is σ = 33765674404. Its totient is φ = 9646608384.

The previous prime is 19293943871. The next prime is 19293943969. The reversal of 19293943924 is 42934939291.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9647168400 + 9646775524 = 98220^2 + 98218^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54262 + ... + 203794.

Almost surely, 2^19293943924 is an apocalyptic number.

It is an amenable number.

19293943924 is a deficient number, since it is larger than the sum of its proper divisors (14471730480).

19293943924 is a wasteful number, since it uses less digits than its factorization.

19293943924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181794 (or 181792 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 55.

The spelling of 19293943924 in words is "nineteen billion, two hundred ninety-three million, nine hundred forty-three thousand, nine hundred twenty-four".