63438774080 has 56 divisors (see below), whose sum is σ = 164796642720. Its totient is φ = 23068643840.

The previous prime is 63438774059. The next prime is 63438774089. The reversal of 63438774080 is 8047783436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63438774089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9007670 + ... + 9014709.

Almost surely, 2^63438774080 is an apocalyptic number.

It is an amenable number.

63438774080 is an abundant number, since it is smaller than the sum of its proper divisors (101357868640).

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

63438774080 is a wasteful number, since it uses less digits than its factorization.

63438774080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18022407 (or 18022397 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 63438774080 in words is "sixty-three billion, four hundred thirty-eight million, seven hundred seventy-four thousand, eighty".