994559999969 has 2 divisors, whose sum is σ = 994559999970. Its totient is φ = 994559999968.

The previous prime is 994559999959. The next prime is 994559999989. The reversal of 994559999969 is 969999955499.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 992653542400 + 1906457569 = 996320^2 + 43663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-994559999969 is a prime.

It is a super-2 number, since 2×994559999969² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (994559999959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497279999984 + 497279999985.

It is an arithmetic number, because the mean of its divisors is an integer number (497279999985).

Almost surely, 2^994559999969 is an apocalyptic number.

It is an amenable number.

994559999969 is a deficient number, since it is larger than the sum of its proper divisors (1).

994559999969 is an equidigital number, since it uses as much as digits as its factorization.

994559999969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25828032600, while the sum is 92.

The spelling of 994559999969 in words is "nine hundred ninety-four billion, five hundred fifty-nine million, nine hundred ninety-nine thousand, nine hundred sixty-nine".