63643458042 has 36 divisors (see below), whose sum is σ = 146482734606. Its totient is φ = 19966573440.

The previous prime is 63643458007. The next prime is 63643458049. The reversal of 63643458042 is 24085434636.

63643458042 is a `hidden beast` number, since 6 + 3 + 64 + 3 + 4 + 580 + 4 + 2 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 61320121641 + 2323336401 = 247629^2 + 48201^2 .

It is not an unprimeable number, because it can be changed into a prime (63643458049) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6112009 + ... + 6122412.

Almost surely, 2^63643458042 is an apocalyptic number.

63643458042 is an abundant number, since it is smaller than the sum of its proper divisors (82839276564).

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

63643458042 is a wasteful number, since it uses less digits than its factorization.

63643458042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12234463 (or 12234443 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 45.

The spelling of 63643458042 in words is "sixty-three billion, six hundred forty-three million, four hundred fifty-eight thousand, forty-two".