63909034560 has 896 divisors, whose sum is σ = 269667532800. Its totient is φ = 13941227520.

The previous prime is 63909034523. The next prime is 63909034561. The reversal of 63909034560 is 6543090936.

It is a happy number.

63909034560 is a `hidden beast` number, since 639 + 0 + 9 + 0 + 3 + 4 + 5 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (63909034561) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 166864129 + ... + 166864511.

Almost surely, 2^63909034560 is an apocalyptic number.

63909034560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63909034560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134833766400).

63909034560 is an abundant number, since it is smaller than the sum of its proper divisors (205758498240).

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

63909034560 is a wasteful number, since it uses less digits than its factorization.

63909034560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 45.

The spelling of 63909034560 in words is "sixty-three billion, nine hundred nine million, thirty-four thousand, five hundred sixty".