994412196641 has 2 divisors, whose sum is σ = 994412196642. Its totient is φ = 994412196640.

The previous prime is 994412196623. The next prime is 994412196691. The reversal of 994412196641 is 146691214499.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 565197225616 + 429214971025 = 751796^2 + 655145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-994412196641 is a prime.

It is not a weakly prime, because it can be changed into another prime (994412196691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497206098320 + 497206098321.

It is an arithmetic number, because the mean of its divisors is an integer number (497206098321).

Almost surely, 2^994412196641 is an apocalyptic number.

It is an amenable number.

994412196641 is a deficient number, since it is larger than the sum of its proper divisors (1).

994412196641 is an equidigital number, since it uses as much as digits as its factorization.

994412196641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3359232, while the sum is 56.

The spelling of 994412196641 in words is "nine hundred ninety-four billion, four hundred twelve million, one hundred ninety-six thousand, six hundred forty-one".