63439068842 has 16 divisors (see below), whose sum is σ = 100840912200. Its totient is φ = 29878786560.

The previous prime is 63439068779. The next prime is 63439068853. The reversal of 63439068842 is 24886093436.

It can be written as a sum of positive squares in 4 ways, for example, as 52477188241 + 10961880601 = 229079^2 + 104699^2 .

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 7 ways as a sum of consecutive naturals, for example, 13336367 + ... + 13341122.

Almost surely, 2^63439068842 is an apocalyptic number.

63439068842 is a deficient number, since it is larger than the sum of its proper divisors (37401843358).

63439068842 is a wasteful number, since it uses less digits than its factorization.

63439068842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26677561.

The product of its (nonzero) digits is 5971968, while the sum is 53.

The spelling of 63439068842 in words is "sixty-three billion, four hundred thirty-nine million, sixty-eight thousand, eight hundred forty-two".