722856698310647 has 2 divisors, whose sum is σ = 722856698310648. Its totient is φ = 722856698310646.

The previous prime is 722856698310629. The next prime is 722856698310667. The reversal of 722856698310647 is 746013896658227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 722856698310647 - 2¹² = 722856698306551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722856698310667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361428349155323 + 361428349155324.

It is an arithmetic number, because the mean of its divisors is an integer number (361428349155324).

It is a 1-persistent number, because it is pandigital, but 2⋅722856698310647 = 1445713396621294 is not.

Almost surely, 2^{722856698310647} is an apocalyptic number.

722856698310647 is a deficient number, since it is larger than the sum of its proper divisors (1).

722856698310647 is an equidigital number, since it uses as much as digits as its factorization.

722856698310647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1463132160, while the sum is 74.

The spelling of 722856698310647 in words is "seven hundred twenty-two trillion, eight hundred fifty-six billion, six hundred ninety-eight million, three hundred ten thousand, six hundred forty-seven".