942581851966 has 4 divisors (see below), whose sum is σ = 1413872777952. Its totient is φ = 471290925982.

The previous prime is 942581851961. The next prime is 942581851969. The reversal of 942581851966 is 669158185249.

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

It is a junction number, because it is equal to n+sod(n) for n = 942581851898 and 942581851907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (942581851961) 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 as a sum of consecutive naturals, namely, 235645462990 + ... + 235645462993.

It is an arithmetic number, because the mean of its divisors is an integer number (353468194488).

Almost surely, 2^942581851966 is an apocalyptic number.

942581851966 is a deficient number, since it is larger than the sum of its proper divisors (471290925986).

942581851966 is a wasteful number, since it uses less digits than its factorization.

942581851966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471290925985.

The product of its digits is 37324800, while the sum is 64.

The spelling of 942581851966 in words is "nine hundred forty-two billion, five hundred eighty-one million, eight hundred fifty-one thousand, nine hundred sixty-six".