63336804381 has 24 divisors (see below), whose sum is σ = 93105561120. Its totient is φ = 41478328800.

The previous prime is 63336804353. The next prime is 63336804383. The reversal of 63336804381 is 18340863336.

63336804381 is a `hidden beast` number, since 633 + 3 + 6 + 8 + 0 + 4 + 3 + 8 + 1 = 666.

It is not a de Polignac number, because 63336804381 - 2¹³ = 63336796189 is a prime.

It is a super-2 number, since 2×63336804381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63336804383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 690126 + ... + 776496.

It is an arithmetic number, because the mean of its divisors is an integer number (3879398380).

Almost surely, 2^63336804381 is an apocalyptic number.

It is an amenable number.

63336804381 is a deficient number, since it is larger than the sum of its proper divisors (29768756739).

63336804381 is a wasteful number, since it uses less digits than its factorization.

63336804381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87817 (or 87814 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 63336804381 in words is "sixty-three billion, three hundred thirty-six million, eight hundred four thousand, three hundred eighty-one".