726414537637 has 2 divisors, whose sum is σ = 726414537638. Its totient is φ = 726414537636.

The previous prime is 726414537581. The next prime is 726414537661. The reversal of 726414537637 is 736735414627.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 721592485156 + 4822052481 = 849466^2 + 69441^2 .

It is a cyclic number.

It is not a de Polignac number, because 726414537637 - 2⁷ = 726414537509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726414597637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363207268818 + 363207268819.

It is an arithmetic number, because the mean of its divisors is an integer number (363207268819).

Almost surely, 2^726414537637 is an apocalyptic number.

It is an amenable number.

726414537637 is a deficient number, since it is larger than the sum of its proper divisors (1).

726414537637 is an equidigital number, since it uses as much as digits as its factorization.

726414537637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17781120, while the sum is 55.

The spelling of 726414537637 in words is "seven hundred twenty-six billion, four hundred fourteen million, five hundred thirty-seven thousand, six hundred thirty-seven".