63530356466513 has 4 divisors (see below), whose sum is σ = 63777556297380. Its totient is φ = 63283156635648.

The previous prime is 63530356466459. The next prime is 63530356466573. The reversal of 63530356466513 is 31566465303536.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63239584238224 + 290772228289 = 7952332^2 + 539233^2 .

It is a cyclic number.

It is not a de Polignac number, because 63530356466513 - 2⁸ = 63530356466257 is a prime.

It is a super-2 number, since 2×63530356466513² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63530356466573) 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, 123599915048 + ... + 123599915561.

It is an arithmetic number, because the mean of its divisors is an integer number (15944389074345).

Almost surely, 2^{63530356466513} is an apocalyptic number.

It is an amenable number.

63530356466513 is a deficient number, since it is larger than the sum of its proper divisors (247199830867).

63530356466513 is a wasteful number, since it uses less digits than its factorization.

63530356466513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247199830866.

The product of its (nonzero) digits is 52488000, while the sum is 56.

The spelling of 63530356466513 in words is "sixty-three trillion, five hundred thirty billion, three hundred fifty-six million, four hundred sixty-six thousand, five hundred thirteen".