63571449138 has 32 divisors (see below), whose sum is σ = 130708558656. Its totient is φ = 20597341248.

The previous prime is 63571449121. The next prime is 63571449169. The reversal of 63571449138 is 83194417536.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83545 + ... + 366227.

It is an arithmetic number, because the mean of its divisors is an integer number (4084642458).

Almost surely, 2^63571449138 is an apocalyptic number.

63571449138 is an abundant number, since it is smaller than the sum of its proper divisors (67137109518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63571449138 is a wasteful number, since it uses less digits than its factorization.

63571449138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283738.

The product of its digits is 2177280, while the sum is 51.

The spelling of 63571449138 in words is "sixty-three billion, five hundred seventy-one million, four hundred forty-nine thousand, one hundred thirty-eight".