63381957682 has 8 divisors (see below), whose sum is σ = 96866765676. Its totient is φ = 31093035792.

The previous prime is 63381957641. The next prime is 63381957689. The reversal of 63381957682 is 28675918336.

It can be written as a sum of positive squares in 2 ways, for example, as 60886056001 + 2495901681 = 246751^2 + 49959^2 .

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

It is not an unprimeable number, because it can be changed into a prime (63381957689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298971393 + ... + 298971604.

Almost surely, 2^63381957682 is an apocalyptic number.

63381957682 is a deficient number, since it is larger than the sum of its proper divisors (33484807994).

63381957682 is a wasteful number, since it uses less digits than its factorization.

63381957682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597943052.

The product of its digits is 13063680, while the sum is 58.

The spelling of 63381957682 in words is "sixty-three billion, three hundred eighty-one million, nine hundred fifty-seven thousand, six hundred eighty-two".