63193881376 has 12 divisors (see below), whose sum is σ = 124412954022. Its totient is φ = 31596940672.

The previous prime is 63193881367. The next prime is 63193881391. The reversal of 63193881376 is 67318839136.

It can be written as a sum of positive squares in only one way, i.e., 38958864400 + 24235016976 = 197380^2 + 155676^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 987404365 + ... + 987404428.

Almost surely, 2^63193881376 is an apocalyptic number.

It is an amenable number.

63193881376 is a deficient number, since it is larger than the sum of its proper divisors (61219072646).

63193881376 is a wasteful number, since it uses less digits than its factorization.

63193881376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1974808803 (or 1974808795 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 55.

The spelling of 63193881376 in words is "sixty-three billion, one hundred ninety-three million, eight hundred eighty-one thousand, three hundred seventy-six".