999472069697 has 2 divisors, whose sum is σ = 999472069698. Its totient is φ = 999472069696.

The previous prime is 999472069693. The next prime is 999472069699. The reversal of 999472069697 is 796960274999.

999472069697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 999736²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 999472069696 + 1 = 999736^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 999472069697 - 2² = 999472069693 is a prime.

Together with 999472069699, 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 (999472069693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499736034848 + 499736034849.

It is an arithmetic number, because the mean of its divisors is an integer number (499736034849).

Almost surely, 2^999472069697 is an apocalyptic number.

It is an amenable number.

999472069697 is a deficient number, since it is larger than the sum of its proper divisors (1).

999472069697 is an equidigital number, since it uses as much as digits as its factorization.

999472069697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 833299488, while the sum is 77.

The spelling of 999472069697 in words is "nine hundred ninety-nine billion, four hundred seventy-two million, sixty-nine thousand, six hundred ninety-seven".