1992317543423 has 4 divisors (see below), whose sum is σ = 1992375559728. Its totient is φ = 1992259527120.

The previous prime is 1992317543357. The next prime is 1992317543431. The reversal of 1992317543423 is 3243457132991.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1992317543423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992317543483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28956611 + ... + 29025332.

It is an arithmetic number, because the mean of its divisors is an integer number (498093889932).

Almost surely, 2^{1992317543423} is an apocalyptic number.

1992317543423 is a deficient number, since it is larger than the sum of its proper divisors (58016305).

1992317543423 is an equidigital number, since it uses as much as digits as its factorization.

1992317543423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58016304.

The product of its digits is 4898880, while the sum is 53.

The spelling of 1992317543423 in words is "one trillion, nine hundred ninety-two billion, three hundred seventeen million, five hundred forty-three thousand, four hundred twenty-three".