1992323441281 has 8 divisors (see below), whose sum is σ = 2043562327400. Its totient is φ = 1941683840640.

The previous prime is 1992323441261. The next prime is 1992323441287. The reversal of 1992323441281 is 1821443232991.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 654541056 + 1991668900225 = 25584^2 + 1411265^2 .

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 1992323441281 - 2⁵ = 1992323441249 is a prime.

It is a super-2 number, since 2×1992323441281² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1992323441287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149814636 + ... + 149827933.

It is an arithmetic number, because the mean of its divisors is an integer number (255445290925).

Almost surely, 2^{1992323441281} is an apocalyptic number.

It is an amenable number.

1992323441281 is a deficient number, since it is larger than the sum of its proper divisors (51238886119).

1992323441281 is a wasteful number, since it uses less digits than its factorization.

1992323441281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299642739.

The product of its digits is 746496, while the sum is 49.

The spelling of 1992323441281 in words is "one trillion, nine hundred ninety-two billion, three hundred twenty-three million, four hundred forty-one thousand, two hundred eighty-one".