63868421601 has 12 divisors (see below), whose sum is σ = 92259905920. Its totient is φ = 42576400440.

The previous prime is 63868421569. The next prime is 63868421641. The reversal of 63868421601 is 10612486836.

63868421601 is a `hidden beast` number, since 6 + 38 + 6 + 8 + 4 + 2 + 1 + 601 = 666.

It is not a de Polignac number, because 63868421601 - 2⁵ = 63868421569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63868421641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46681 + ... + 360438.

Almost surely, 2^63868421601 is an apocalyptic number.

It is an amenable number.

63868421601 is a deficient number, since it is larger than the sum of its proper divisors (28391484319).

63868421601 is a wasteful number, since it uses less digits than its factorization.

63868421601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424556 (or 424553 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 63868421601 in words is "sixty-three billion, eight hundred sixty-eight million, four hundred twenty-one thousand, six hundred one".