63445638104 has 8 divisors (see below), whose sum is σ = 118960571460. Its totient is φ = 31722819048.

The previous prime is 63445638089. The next prime is 63445638131. The reversal of 63445638104 is 40183654436.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3965352374 + ... + 3965352389.

Almost surely, 2^63445638104 is an apocalyptic number.

It is an amenable number.

63445638104 is a deficient number, since it is larger than the sum of its proper divisors (55514933356).

63445638104 is a wasteful number, since it uses less digits than its factorization.

63445638104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7930704769 (or 7930704765 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 44.

The spelling of 63445638104 in words is "sixty-three billion, four hundred forty-five million, six hundred thirty-eight thousand, one hundred four".