712249817813 has 2 divisors, whose sum is σ = 712249817814. Its totient is φ = 712249817812.

The previous prime is 712249817801. The next prime is 712249817897. The reversal of 712249817813 is 318718942217.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 535440500644 + 176809317169 = 731738^2 + 420487^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-712249817813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (712249117813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356124908906 + 356124908907.

It is an arithmetic number, because the mean of its divisors is an integer number (356124908907).

Almost surely, 2^712249817813 is an apocalyptic number.

It is an amenable number.

712249817813 is a deficient number, since it is larger than the sum of its proper divisors (1).

712249817813 is an equidigital number, since it uses as much as digits as its factorization.

712249817813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 53.

The spelling of 712249817813 in words is "seven hundred twelve billion, two hundred forty-nine million, eight hundred seventeen thousand, eight hundred thirteen".