64884219480 has 320 divisors, whose sum is σ = 228791455200. Its totient is φ = 16356245760.

The previous prime is 64884219479. The next prime is 64884219493. The reversal of 64884219480 is 8491248846.

It is a happy number.

64884219480 is a `hidden beast` number, since 64 + 8 + 84 + 21 + 9 + 480 = 666.

It is a super-2 number, since 2×64884219480² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 140746450 + ... + 140746910.

Almost surely, 2^64884219480 is an apocalyptic number.

64884219480 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 64884219480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114395727600).

64884219480 is an abundant number, since it is smaller than the sum of its proper divisors (163907235720).

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

64884219480 is an equidigital number, since it uses as much as digits as its factorization.

64884219480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 54.

The spelling of 64884219480 in words is "sixty-four billion, eight hundred eighty-four million, two hundred nineteen thousand, four hundred eighty".