63829766436481 has 8 divisors (see below), whose sum is σ = 64101438916064. Its totient is φ = 63558150310080.

The previous prime is 63829766436427. The next prime is 63829766436511. The reversal of 63829766436481 is 18463466792836.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63829766436481 - 2¹⁵ = 63829766403713 is a prime.

It is a super-2 number, since 2×63829766436481² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63829466436481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11817351 + ... + 16349596.

It is an arithmetic number, because the mean of its divisors is an integer number (8012679864508).

Almost surely, 2^{63829766436481} is an apocalyptic number.

It is an amenable number.

63829766436481 is a deficient number, since it is larger than the sum of its proper divisors (271672479583).

63829766436481 is a wasteful number, since it uses less digits than its factorization.

63829766436481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28176591.

The product of its digits is 1504935936, while the sum is 73.

The spelling of 63829766436481 in words is "sixty-three trillion, eight hundred twenty-nine billion, seven hundred sixty-six million, four hundred thirty-six thousand, four hundred eighty-one".