712999772621 has 2 divisors, whose sum is σ = 712999772622. Its totient is φ = 712999772620.

The previous prime is 712999772593. The next prime is 712999772627. The reversal of 712999772621 is 126277999217.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 593570089225 + 119429683396 = 770435^2 + 345586^2 .

It is a cyclic number.

It is not a de Polignac number, because 712999772621 - 2¹⁰ = 712999771597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (712999772627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356499886310 + 356499886311.

It is an arithmetic number, because the mean of its divisors is an integer number (356499886311).

Almost surely, 2^712999772621 is an apocalyptic number.

It is an amenable number.

712999772621 is a deficient number, since it is larger than the sum of its proper divisors (1).

712999772621 is an equidigital number, since it uses as much as digits as its factorization.

712999772621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12002256, while the sum is 62.

The spelling of 712999772621 in words is "seven hundred twelve billion, nine hundred ninety-nine million, seven hundred seventy-two thousand, six hundred twenty-one".