63567479808 has 704 divisors, whose sum is σ = 231098112000. Its totient is φ = 16856875008.

The previous prime is 63567479803. The next prime is 63567479809. The reversal of 63567479808 is 80897476536.

63567479808 is a `hidden beast` number, since 63 + 567 + 4 + 7 + 9 + 8 + 0 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (63567479803) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 216953710 + ... + 216954002.

Almost surely, 2^63567479808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63567479808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115549056000).

63567479808 is an abundant number, since it is smaller than the sum of its proper divisors (167530632192).

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

63567479808 is a wasteful number, since it uses less digits than its factorization.

63567479808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 63.

The spelling of 63567479808 in words is "sixty-three billion, five hundred sixty-seven million, four hundred seventy-nine thousand, eight hundred eight".