530196636721 has 2 divisors, whose sum is σ = 530196636722. Its totient is φ = 530196636720.

The previous prime is 530196636677. The next prime is 530196636787. The reversal of 530196636721 is 127636691035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 484083369121 + 46113267600 = 695761^2 + 214740^2 .

It is a cyclic number.

It is not a de Polignac number, because 530196636721 - 2¹³ = 530196628529 is a prime.

It is a super-2 number, since 2×530196636721² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (530196636791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265098318360 + 265098318361.

It is an arithmetic number, because the mean of its divisors is an integer number (265098318361).

Almost surely, 2^530196636721 is an apocalyptic number.

It is an amenable number.

530196636721 is a deficient number, since it is larger than the sum of its proper divisors (1).

530196636721 is an equidigital number, since it uses as much as digits as its factorization.

530196636721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1224720, while the sum is 49.

The spelling of 530196636721 in words is "five hundred thirty billion, one hundred ninety-six million, six hundred thirty-six thousand, seven hundred twenty-one".