64300787776 has 63 divisors (see below), whose sum is σ = 132269503431. Its totient is φ = 31013359104.

The previous prime is 64300787731. The next prime is 64300787797. The reversal of 64300787776 is 67778700346.

The square root of 64300787776 is 253576.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 25972545600 + 38328242176 = 161160^2 + 195776^2 .

It is a super-2 number, since 2×64300787776² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 58829086 + ... + 58830178.

Almost surely, 2^64300787776 is an apocalyptic number.

64300787776 is the 253576-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64300787776

64300787776 is an abundant number, since it is smaller than the sum of its proper divisors (67968715655).

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

64300787776 is an frugal number, since it uses more digits than its factorization.

64300787776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 8297856, while the sum is 55.

The spelling of 64300787776 in words is "sixty-four billion, three hundred million, seven hundred eighty-seven thousand, seven hundred seventy-six".