994093587667 has 4 divisors (see below), whose sum is σ = 1007711308120. Its totient is φ = 980475867216.

The previous prime is 994093587629. The next prime is 994093587671. The reversal of 994093587667 is 766785390499.

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

It is a cyclic number.

It is not a de Polignac number, because 994093587667 - 2³⁹ = 444337773779 is a prime.

It is a super-2 number, since 2×994093587667² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (73), and also a Moran number because the ratio is a prime number: 13617720379 = 994093587667 / (9 + 9 + 4 + 0 + 9 + 3 + 5 + 8 + 7 + 6 + 6 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 994093587667.

It is not an unprimeable number, because it can be changed into a prime (994093587607) 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, 6808860117 + ... + 6808860262.

It is an arithmetic number, because the mean of its divisors is an integer number (251927827030).

Almost surely, 2^994093587667 is an apocalyptic number.

994093587667 is a deficient number, since it is larger than the sum of its proper divisors (13617720453).

994093587667 is a wasteful number, since it uses less digits than its factorization.

994093587667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13617720452.

The product of its (nonzero) digits is 617258880, while the sum is 73.

The spelling of 994093587667 in words is "nine hundred ninety-four billion, ninety-three million, five hundred eighty-seven thousand, six hundred sixty-seven".