63932481816841 has 27 divisors (see below), whose sum is σ = 72032733451189. Its totient is φ = 56699668044800.

The previous prime is 63932481816839. The next prime is 63932481816859. The reversal of 63932481816841 is 14861818423936.

The square root of 63932481816841 is 7995779.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 9193199856841 + 54739281960000 = 3032029^2 + 7398600^2 .

It is not a de Polignac number, because 63932481816841 - 2¹ = 63932481816839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63932481816811) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3606087465 + ... + 3606105193.

Almost surely, 2^{63932481816841} is an apocalyptic number.

63932481816841 is the 7995779-th square number.

63932481816841 is the 3997890-th centered octagonal number.

It is an amenable number.

63932481816841 is a deficient number, since it is larger than the sum of its proper divisors (8100251634348).

63932481816841 is an frugal number, since it uses more digits than its factorization.

63932481816841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35562 (or 17781 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 64.

The spelling of 63932481816841 in words is "sixty-three trillion, nine hundred thirty-two billion, four hundred eighty-one million, eight hundred sixteen thousand, eight hundred forty-one".