64732106880 has 1024 divisors, whose sum is σ = 275868057600. Its totient is φ = 14034124800.

The previous prime is 64732106869. The next prime is 64732106891. The reversal of 64732106880 is 8860123746.

It is an interprime number because it is at equal distance from previous prime (64732106869) and next prime (64732106891).

It is a super-4 number, since 4×64732106880⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 127 ways as a sum of consecutive naturals, for example, 228735219 + ... + 228735501.

It is an arithmetic number, because the mean of its divisors is an integer number (269402400).

Almost surely, 2^64732106880 is an apocalyptic number.

64732106880 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 64732106880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137934028800).

64732106880 is an abundant number, since it is smaller than the sum of its proper divisors (211135950720).

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

64732106880 is a wasteful number, since it uses less digits than its factorization.

64732106880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 64732106880 in words is "sixty-four billion, seven hundred thirty-two million, one hundred six thousand, eight hundred eighty".