863528803801 has 2 divisors, whose sum is σ = 863528803802. Its totient is φ = 863528803800.

The previous prime is 863528803799. The next prime is 863528803817. The reversal of 863528803801 is 108308825368.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 859468055625 + 4060748176 = 927075^2 + 63724^2 .

It is a cyclic number.

It is not a de Polignac number, because 863528803801 - 2¹ = 863528803799 is a prime.

Together with 863528803799, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (863528803861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 431764401900 + 431764401901.

It is an arithmetic number, because the mean of its divisors is an integer number (431764401901).

Almost surely, 2^863528803801 is an apocalyptic number.

It is an amenable number.

863528803801 is a deficient number, since it is larger than the sum of its proper divisors (1).

863528803801 is an equidigital number, since it uses as much as digits as its factorization.

863528803801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2211840, while the sum is 52.

The spelling of 863528803801 in words is "eight hundred sixty-three billion, five hundred twenty-eight million, eight hundred three thousand, eight hundred one".