63487450615680 has 1024 divisors, whose sum is σ = 276836768409600. Its totient is φ = 13390479360000.

The previous prime is 63487450615643. The next prime is 63487450615709. The reversal of 63487450615680 is 8651605478436.

63487450615680 is a `hidden beast` number, since 6 + 3 + 4 + 8 + 7 + 4 + 5 + 0 + 61 + 568 + 0 = 666.

63487450615680 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×63487450615680² (a number of 28 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6291487435 + ... + 6291497525.

It is an arithmetic number, because the mean of its divisors is an integer number (270348406650).

Almost surely, 2^{63487450615680} is an apocalyptic number.

63487450615680 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 63487450615680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138418384204800).

63487450615680 is an abundant number, since it is smaller than the sum of its proper divisors (213349317793920).

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

63487450615680 is a wasteful number, since it uses less digits than its factorization.

63487450615680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14140 (or 14122 counting only the distinct ones).

The product of its (nonzero) digits is 116121600, while the sum is 63.

The spelling of 63487450615680 in words is "sixty-three trillion, four hundred eighty-seven billion, four hundred fifty million, six hundred fifteen thousand, six hundred eighty".