19712693552 has 10 divisors (see below), whose sum is σ = 38193343788. Its totient is φ = 9856346768.

The previous prime is 19712693551. The next prime is 19712693573. The reversal of 19712693552 is 25539621791.

It is a self number, because there is not a number n which added to its sum of digits gives 19712693552.

It is not an unprimeable number, because it can be changed into a prime (19712693551) 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 as a sum of consecutive naturals, namely, 616021658 + ... + 616021689.

Almost surely, 2^19712693552 is an apocalyptic number.

It is an amenable number.

19712693552 is a deficient number, since it is larger than the sum of its proper divisors (18480650236).

19712693552 is a wasteful number, since it uses less digits than its factorization.

19712693552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232043355 (or 1232043349 counting only the distinct ones).

The product of its digits is 1020600, while the sum is 50.

The spelling of 19712693552 in words is "nineteen billion, seven hundred twelve million, six hundred ninety-three thousand, five hundred fifty-two".