726040661547511 has 2 divisors, whose sum is σ = 726040661547512. Its totient is φ = 726040661547510.

The previous prime is 726040661547491. The next prime is 726040661547547. The reversal of 726040661547511 is 115745166040627.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 726040661547511 - 2¹⁵ = 726040661514743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726040661544511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363020330773755 + 363020330773756.

It is an arithmetic number, because the mean of its divisors is an integer number (363020330773756).

Almost surely, 2^{726040661547511} is an apocalyptic number.

726040661547511 is a deficient number, since it is larger than the sum of its proper divisors (1).

726040661547511 is an equidigital number, since it uses as much as digits as its factorization.

726040661547511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8467200, while the sum is 55.

The spelling of 726040661547511 in words is "seven hundred twenty-six trillion, forty billion, six hundred sixty-one million, five hundred forty-seven thousand, five hundred eleven".