64287618955776 has 200 divisors, whose sum is σ = 191893433180064. Its totient is φ = 21427886499840.

The previous prime is 64287618955727. The next prime is 64287618955793. The reversal of 64287618955776 is 67755981678246.

64287618955776 is a `hidden beast` number, since 6 + 4 + 28 + 7 + 6 + 18 + 9 + 5 + 577 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a junction number, because it is equal to n+sod(n) for n = 64287618955695 and 64287618955704.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 860216331 + ... + 860291061.

Almost surely, 2^{64287618955776} 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 64287618955776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95946716590032).

64287618955776 is an abundant number, since it is smaller than the sum of its proper divisors (127605814224288).

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

64287618955776 is an equidigital number, since it uses as much as digits as its factorization.

64287618955776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95504 (or 95479 counting only the distinct ones).

The product of its digits is 8534937600, while the sum is 81.

The spelling of 64287618955776 in words is "sixty-four trillion, two hundred eighty-seven billion, six hundred eighteen million, nine hundred fifty-five thousand, seven hundred seventy-six".