63816242582045 has 4 divisors (see below), whose sum is σ = 76579491098460. Its totient is φ = 51052994065632.

The previous prime is 63816242582021. The next prime is 63816242582159. The reversal of 63816242582045 is 54028524261836.

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 17811413207449 + 46004829374596 = 4220357^2 + 6782686^2 .

It is a cyclic number.

It is not a de Polignac number, because 63816242582045 - 2¹² = 63816242577949 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 6381624258200 + ... + 6381624258209.

It is an arithmetic number, because the mean of its divisors is an integer number (19144872774615).

Almost surely, 2^{63816242582045} is an apocalyptic number.

It is an amenable number.

63816242582045 is a deficient number, since it is larger than the sum of its proper divisors (12763248516415).

63816242582045 is a wasteful number, since it uses less digits than its factorization.

63816242582045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12763248516414.

The product of its (nonzero) digits is 22118400, while the sum is 56.

The spelling of 63816242582045 in words is "sixty-three trillion, eight hundred sixteen billion, two hundred forty-two million, five hundred eighty-two thousand, forty-five".