63763800381 has 48 divisors (see below), whose sum is σ = 96916060800. Its totient is φ = 40319959680.

The previous prime is 63763800343. The next prime is 63763800389. The reversal of 63763800381 is 18300836736.

63763800381 is a `hidden beast` number, since 6 + 3 + 7 + 638 + 0 + 0 + 3 + 8 + 1 = 666.

It is not a de Polignac number, because 63763800381 - 2¹³ = 63763792189 is a prime.

It is a super-2 number, since 2×63763800381² (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 (63763800389) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23346786 + ... + 23349516.

It is an arithmetic number, because the mean of its divisors is an integer number (2019084600).

Almost surely, 2^63763800381 is an apocalyptic number.

It is an amenable number.

63763800381 is a deficient number, since it is larger than the sum of its proper divisors (33152260419).

63763800381 is a wasteful number, since it uses less digits than its factorization.

63763800381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666 (or 3663 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 63763800381 in words is "sixty-three billion, seven hundred sixty-three million, eight hundred thousand, three hundred eighty-one".