63407385108 has 36 divisors (see below), whose sum is σ = 164189045748. Its totient is φ = 20620287360.

The previous prime is 63407385101. The next prime is 63407385131. The reversal of 63407385108 is 80158370436.

63407385108 is a `hidden beast` number, since 63 + 4 + 0 + 73 + 8 + 510 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13755067524 + 49652317584 = 117282^2 + 222828^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63407385101) 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, 21477991 + ... + 21480942.

Almost surely, 2^63407385108 is an apocalyptic number.

It is an amenable number.

63407385108 is an abundant number, since it is smaller than the sum of its proper divisors (100781660640).

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

63407385108 is a wasteful number, since it uses less digits than its factorization.

63407385108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42958984 (or 42958979 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 63407385108 in words is "sixty-three billion, four hundred seven million, three hundred eighty-five thousand, one hundred eight".