19972031862443 has 8 divisors (see below), whose sum is σ = 20196586332000. Its totient is φ = 19747480717888.

The previous prime is 19972031862383. The next prime is 19972031862449. The reversal of 19972031862443 is 34426813027991.

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

It is a cyclic number.

It is not a de Polignac number, because 19972031862443 - 2⁸ = 19972031862187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19972031862449) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12432605 + ... + 13946817.

It is an arithmetic number, because the mean of its divisors is an integer number (2524573291500).

Almost surely, 2^{19972031862443} is an apocalyptic number.

19972031862443 is a deficient number, since it is larger than the sum of its proper divisors (224554469557).

19972031862443 is a wasteful number, since it uses less digits than its factorization.

19972031862443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662501.

The product of its (nonzero) digits is 15676416, while the sum is 59.

The spelling of 19972031862443 in words is "nineteen trillion, nine hundred seventy-two billion, thirty-one million, eight hundred sixty-two thousand, four hundred forty-three".