63914489856 has 432 divisors, whose sum is σ = 222773143320. Its totient is φ = 18254315520.

The previous prime is 63914489843. The next prime is 63914489857. The reversal of 63914489856 is 65898441936.

63914489856 is a `hidden beast` number, since 63 + 9 + 14 + 489 + 85 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

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

It is a junction number, because it is equal to n+sod(n) for n = 63914489793 and 63914489802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63914489857) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 24384226 + ... + 24386846.

Almost surely, 2^63914489856 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 63914489856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111386571660).

63914489856 is an abundant number, since it is smaller than the sum of its proper divisors (158858653464).

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

63914489856 is an equidigital number, since it uses as much as digits as its factorization.

63914489856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2672 (or 2633 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 63.

It can be divided in two parts, 639144 and 89856, that added together give a cube (729000 = 90³).

The spelling of 63914489856 in words is "sixty-three billion, nine hundred fourteen million, four hundred eighty-nine thousand, eight hundred fifty-six".