64283239680 has 288 divisors, whose sum is σ = 237145926528. Its totient is φ = 14666956800.

The previous prime is 64283239633. The next prime is 64283239703. The reversal of 64283239680 is 8693238246.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 673320 + ... + 762840.

It is an arithmetic number, because the mean of its divisors is an integer number (823423356).

Almost surely, 2^64283239680 is an apocalyptic number.

64283239680 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 64283239680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118572963264).

64283239680 is an abundant number, since it is smaller than the sum of its proper divisors (172862686848).

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

64283239680 is a wasteful number, since it uses less digits than its factorization.

64283239680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89573 (or 89559 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 51.

The spelling of 64283239680 in words is "sixty-four billion, two hundred eighty-three million, two hundred thirty-nine thousand, six hundred eighty".