11638479528673 has 2 divisors, whose sum is σ = 11638479528674. Its totient is φ = 11638479528672.

The previous prime is 11638479528653. The next prime is 11638479528677. The reversal of 11638479528673 is 37682597483611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11146036290624 + 492443238049 = 3338568^2 + 701743^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11638479528673 is a prime.

It is not a weakly prime, because it can be changed into another prime (11638479528677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5819239764336 + 5819239764337.

It is an arithmetic number, because the mean of its divisors is an integer number (5819239764337).

Almost surely, 2^{11638479528673} is an apocalyptic number.

It is an amenable number.

11638479528673 is a deficient number, since it is larger than the sum of its proper divisors (1).

11638479528673 is an equidigital number, since it uses as much as digits as its factorization.

11638479528673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 365783040, while the sum is 70.

The spelling of 11638479528673 in words is "eleven trillion, six hundred thirty-eight billion, four hundred seventy-nine million, five hundred twenty-eight thousand, six hundred seventy-three".