19973486080897 has 8 divisors (see below), whose sum is σ = 20029276612800. Its totient is φ = 19917718343664.

The previous prime is 19973486080819. The next prime is 19973486080901. The reversal of 19973486080897 is 79808068437991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19973486080897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19973486084897) 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 in 7 ways as a sum of consecutive naturals, for example, 3942997 + ... + 7449442.

It is an arithmetic number, because the mean of its divisors is an integer number (2503659576600).

Almost surely, 2^{19973486080897} is an apocalyptic number.

It is an amenable number.

19973486080897 is a deficient number, since it is larger than the sum of its proper divisors (55790531903).

19973486080897 is a wasteful number, since it uses less digits than its factorization.

19973486080897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11397335.

The product of its (nonzero) digits is 1316818944, while the sum is 79.

The spelling of 19973486080897 in words is "nineteen trillion, nine hundred seventy-three billion, four hundred eighty-six million, eighty thousand, eight hundred ninety-seven".