1992961696589 has 4 divisors (see below), whose sum is σ = 1992972013824. Its totient is φ = 1992951379356.

The previous prime is 1992961696519. The next prime is 1992961696601. The reversal of 1992961696589 is 9856961692991.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1992961696589 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 (1992961696519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4863227 + ... + 5257080.

It is an arithmetic number, because the mean of its divisors is an integer number (498243003456).

Almost surely, 2^{1992961696589} is an apocalyptic number.

It is an amenable number.

1992961696589 is a deficient number, since it is larger than the sum of its proper divisors (10317235).

1992961696589 is a wasteful number, since it uses less digits than its factorization.

1992961696589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10317234.

The product of its digits is 1020366720, while the sum is 80.

The spelling of 1992961696589 in words is "one trillion, nine hundred ninety-two billion, nine hundred sixty-one million, six hundred ninety-six thousand, five hundred eighty-nine".