64722682880 has 352 divisors, whose sum is σ = 172333163520. Its totient is φ = 23296081920.

The previous prime is 64722682859. The next prime is 64722682883. The reversal of 64722682880 is 8828622746.

It is not an unprimeable number, because it can be changed into a prime (64722682883) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 779791319 + ... + 779791401.

Almost surely, 2^64722682880 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 64722682880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86166581760).

64722682880 is an abundant number, since it is smaller than the sum of its proper divisors (107610480640).

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

64722682880 is an equidigital number, since it uses as much as digits as its factorization.

64722682880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 53.

The spelling of 64722682880 in words is "sixty-four billion, seven hundred twenty-two million, six hundred eighty-two thousand, eight hundred eighty".