64483182720 has 384 divisors, whose sum is σ = 253478160000. Its totient is φ = 14952284160.

The previous prime is 64483182707. The next prime is 64483182733. The reversal of 64483182720 is 2728138446.

It is a happy number.

64483182720 is a `hidden beast` number, since 6 + 448 + 3 + 182 + 7 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (64483182707) and next prime (64483182733).

It is a tau number, because it is divible by the number of its divisors (384).

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1435156 + ... + 1479404.

It is an arithmetic number, because the mean of its divisors is an integer number (660099375).

Almost surely, 2^64483182720 is an apocalyptic number.

64483182720 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 64483182720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126739080000).

64483182720 is an abundant number, since it is smaller than the sum of its proper divisors (188994977280).

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

64483182720 is a wasteful number, since it uses less digits than its factorization.

64483182720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44308 (or 44293 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 64483182720 in words is "sixty-four billion, four hundred eighty-three million, one hundred eighty-two thousand, seven hundred twenty".