19493043452 has 12 divisors (see below), whose sum is σ = 34125999936. Its totient is φ = 9742757760.

The previous prime is 19493043439. The next prime is 19493043503. The reversal of 19493043452 is 25434039491.

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 3 ways as a sum of consecutive naturals, for example, 929324 + ... + 950067.

It is an arithmetic number, because the mean of its divisors is an integer number (2843833328).

Almost surely, 2^19493043452 is an apocalyptic number.

It is an amenable number.

19493043452 is a deficient number, since it is larger than the sum of its proper divisors (14632956484).

19493043452 is a wasteful number, since it uses less digits than its factorization.

19493043452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881988 (or 1881986 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 19493043452 in words is "nineteen billion, four hundred ninety-three million, forty-three thousand, four hundred fifty-two".