726407949017 has 2 divisors, whose sum is σ = 726407949018. Its totient is φ = 726407949016.

The previous prime is 726407948993. The next prime is 726407949049. The reversal of 726407949017 is 710949704627.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 524529371536 + 201878577481 = 724244^2 + 449309^2 .

It is a cyclic number.

It is not a de Polignac number, because 726407949017 - 2¹⁴ = 726407932633 is a prime.

It is not a weakly prime, because it can be changed into another prime (726407949077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363203974508 + 363203974509.

It is an arithmetic number, because the mean of its divisors is an integer number (363203974509).

Almost surely, 2^726407949017 is an apocalyptic number.

It is an amenable number.

726407949017 is a deficient number, since it is larger than the sum of its proper divisors (1).

726407949017 is an equidigital number, since it uses as much as digits as its factorization.

726407949017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5334336, while the sum is 56.

The spelling of 726407949017 in words is "seven hundred twenty-six billion, four hundred seven million, nine hundred forty-nine thousand, seventeen".