63526802641 has 4 divisors (see below), whose sum is σ = 63536629300. Its totient is φ = 63516975984.

The previous prime is 63526802617. The next prime is 63526802659. The reversal of 63526802641 is 14620862536.

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 32092931025 + 31433871616 = 179145^2 + 177296^2 .

It is a cyclic number.

It is not a de Polignac number, because 63526802641 - 2⁵ = 63526802609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63524802641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4903626 + ... + 4916563.

It is an arithmetic number, because the mean of its divisors is an integer number (15884157325).

Almost surely, 2^63526802641 is an apocalyptic number.

It is an amenable number.

63526802641 is a deficient number, since it is larger than the sum of its proper divisors (9826659).

63526802641 is an equidigital number, since it uses as much as digits as its factorization.

63526802641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9826658.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 63526802641 in words is "sixty-three billion, five hundred twenty-six million, eight hundred two thousand, six hundred forty-one".