88636007521 has 2 divisors, whose sum is σ = 88636007522. Its totient is φ = 88636007520.

The previous prime is 88636007497. The next prime is 88636007609. The reversal of 88636007521 is 12570063688.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88004189025 + 631818496 = 296655^2 + 25136^2 .

It is a cyclic number.

It is not a de Polignac number, because 88636007521 - 2¹⁵ = 88635974753 is a prime.

It is not a weakly prime, because it can be changed into another prime (88636007321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44318003760 + 44318003761.

It is an arithmetic number, because the mean of its divisors is an integer number (44318003761).

Almost surely, 2^88636007521 is an apocalyptic number.

It is an amenable number.

88636007521 is a deficient number, since it is larger than the sum of its proper divisors (1).

88636007521 is an equidigital number, since it uses as much as digits as its factorization.

88636007521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 88636007521 in words is "eighty-eight billion, six hundred thirty-six million, seven thousand, five hundred twenty-one".