530640475726561 has 4 divisors (see below), whose sum is σ = 530776154706624. Its totient is φ = 530504796746500.

The previous prime is 530640475726469. The next prime is 530640475726577. The reversal of 530640475726561 is 165627574046035.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 530640475726561 - 2¹⁹ = 530640475202273 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 530640475726561.

It is not an unprimeable number, because it can be changed into a prime (530640475726591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67839484165 + ... + 67839491986.

It is an arithmetic number, because the mean of its divisors is an integer number (132694038676656).

Almost surely, 2^{530640475726561} is an apocalyptic number.

It is an amenable number.

530640475726561 is a deficient number, since it is larger than the sum of its proper divisors (135678980063).

530640475726561 is a wasteful number, since it uses less digits than its factorization.

530640475726561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135678980062.

The product of its (nonzero) digits is 127008000, while the sum is 61.

The spelling of 530640475726561 in words is "five hundred thirty trillion, six hundred forty billion, four hundred seventy-five million, seven hundred twenty-six thousand, five hundred sixty-one".