19699847011948 has 18 divisors (see below), whose sum is σ = 36038803304084. Its totient is φ = 9421665961224.

The previous prime is 19699847011927. The next prime is 19699847011961. The reversal of 19699847011948 is 84911074899691.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4654971186 + ... + 4654975417.

Almost surely, 2^{19699847011948} is an apocalyptic number.

It is an amenable number.

19699847011948 is a deficient number, since it is larger than the sum of its proper divisors (16338956292136).

19699847011948 is a wasteful number, since it uses less digits than its factorization.

19699847011948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9309946653 (or 9309946628 counting only the distinct ones).

The product of its (nonzero) digits is 282175488, while the sum is 76.

The spelling of 19699847011948 in words is "nineteen trillion, six hundred ninety-nine billion, eight hundred forty-seven million, eleven thousand, nine hundred forty-eight".