19934492452 has 12 divisors (see below), whose sum is σ = 39868984960. Its totient is φ = 8543353896.

The previous prime is 19934492443. The next prime is 19934492467. The reversal of 19934492452 is 25429443991.

19934492452 is an admirable number.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 19934492452.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355973052 + ... + 355973107.

Almost surely, 2^19934492452 is an apocalyptic number.

It is an amenable number.

19934492452 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19934492452 is a wasteful number, since it uses less digits than its factorization.

19934492452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711946170 (or 711946168 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 52.

The spelling of 19934492452 in words is "nineteen billion, nine hundred thirty-four million, four hundred ninety-two thousand, four hundred fifty-two".