63634038472 has 8 divisors (see below), whose sum is σ = 119313822150. Its totient is φ = 31817019232.

The previous prime is 63634038439. The next prime is 63634038577. The reversal of 63634038472 is 27483043636.

63634038472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 51589853956 + 12044184516 = 227134^2 + 109746^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3977127397 + ... + 3977127412.

Almost surely, 2^63634038472 is an apocalyptic number.

It is an amenable number.

63634038472 is a deficient number, since it is larger than the sum of its proper divisors (55679783678).

63634038472 is a wasteful number, since it uses less digits than its factorization.

63634038472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7954254815 (or 7954254811 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 46.

The spelling of 63634038472 in words is "sixty-three billion, six hundred thirty-four million, thirty-eight thousand, four hundred seventy-two".