722491500013 has 2 divisors, whose sum is σ = 722491500014. Its totient is φ = 722491500012.

The previous prime is 722491500007. The next prime is 722491500131. The reversal of 722491500013 is 310005194227.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 643425371044 + 79066128969 = 802138^2 + 281187^2 .

It is an emirp because it is prime and its reverse (310005194227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 722491500013 - 2⁵ = 722491499981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722491507013) 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, 361245750006 + 361245750007.

It is an arithmetic number, because the mean of its divisors is an integer number (361245750007).

Almost surely, 2^722491500013 is an apocalyptic number.

It is an amenable number.

722491500013 is a deficient number, since it is larger than the sum of its proper divisors (1).

722491500013 is an equidigital number, since it uses as much as digits as its factorization.

722491500013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 722491500013 in words is "seven hundred twenty-two billion, four hundred ninety-one million, five hundred thousand, thirteen".