647889010560 has 448 divisors, whose sum is σ = 2533358810160. Its totient is φ = 157062758400.

The previous prime is 647889010487. The next prime is 647889010583. The reversal of 647889010560 is 65010988746.

647889010560 is a `hidden beast` number, since 6 + 4 + 78 + 8 + 9 + 0 + 1 + 0 + 560 = 666.

647889010560 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 647889010497 and 647889010506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 5069040 + ... + 5195280.

Almost surely, 2^647889010560 is an apocalyptic number.

647889010560 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 647889010560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1266679405080).

647889010560 is an abundant number, since it is smaller than the sum of its proper divisors (1885469799600).

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

647889010560 is a wasteful number, since it uses less digits than its factorization.

647889010560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126289 (or 126262 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 647889010560 in words is "six hundred forty-seven billion, eight hundred eighty-nine million, ten thousand, five hundred sixty".