726664466627 has 16 divisors (see below), whose sum is σ = 793464850944. Its totient is φ = 659987724000.

The previous prime is 726664466551. The next prime is 726664466651.

726664466627 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 726664466627 - 2¹⁴ = 726664450243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 726664466627.

It is not an unprimeable number, because it can be changed into a prime (726664466027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71369477 + ... + 71379657.

It is an arithmetic number, because the mean of its divisors is an integer number (49591553184).

Almost surely, 2^726664466627 is an apocalyptic number.

726664466627 is a deficient number, since it is larger than the sum of its proper divisors (66800384317).

726664466627 is a wasteful number, since it uses less digits than its factorization.

726664466627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15610.

The product of its digits is 146313216, while the sum is 62.

The spelling of 726664466627 in words is "seven hundred twenty-six billion, six hundred sixty-four million, four hundred sixty-six thousand, six hundred twenty-seven".