994431653417 has 2 divisors, whose sum is σ = 994431653418. Its totient is φ = 994431653416.

The previous prime is 994431653407. The next prime is 994431653419. The reversal of 994431653417 is 714356134499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 994385901721 + 45751696 = 997189^2 + 6764^2 .

It is a cyclic number.

It is not a de Polignac number, because 994431653417 - 2¹⁶ = 994431587881 is a prime.

Together with 994431653419, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (994431653419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497215826708 + 497215826709.

It is an arithmetic number, because the mean of its divisors is an integer number (497215826709).

Almost surely, 2^994431653417 is an apocalyptic number.

It is an amenable number.

994431653417 is a deficient number, since it is larger than the sum of its proper divisors (1).

994431653417 is an equidigital number, since it uses as much as digits as its factorization.

994431653417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9797760, while the sum is 56.

The spelling of 994431653417 in words is "nine hundred ninety-four billion, four hundred thirty-one million, six hundred fifty-three thousand, four hundred seventeen".