19531582996 has 12 divisors (see below), whose sum is σ = 34181755552. Its totient is φ = 9765367128.

The previous prime is 19531582981. The next prime is 19531582997. The reversal of 19531582996 is 69928513591.

It is a self number, because there is not a number n which added to its sum of digits gives 19531582996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19531582997) by changing a digit.

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, 12091 + ... + 198013.

Almost surely, 2^19531582996 is an apocalyptic number.

It is an amenable number.

19531582996 is a deficient number, since it is larger than the sum of its proper divisors (14650172556).

19531582996 is a wasteful number, since it uses less digits than its factorization.

19531582996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212190 (or 212188 counting only the distinct ones).

The product of its digits is 5248800, while the sum is 58.

The spelling of 19531582996 in words is "nineteen billion, five hundred thirty-one million, five hundred eighty-two thousand, nine hundred ninety-six".