64886229828 has 216 divisors, whose sum is σ = 197335057920. Its totient is φ = 17905950720.

The previous prime is 64886229769. The next prime is 64886229839. The reversal of 64886229828 is 82892268846.

64886229828 is a `hidden beast` number, since 6 + 488 + 62 + 2 + 98 + 2 + 8 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

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 71 ways as a sum of consecutive naturals, for example, 42051225 + ... + 42052767.

Almost surely, 2^64886229828 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 64886229828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98667528960).

64886229828 is an abundant number, since it is smaller than the sum of its proper divisors (132448828092).

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

64886229828 is a wasteful number, since it uses less digits than its factorization.

64886229828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367 (or 2355 counting only the distinct ones).

The product of its digits is 42467328, while the sum is 63.

The spelling of 64886229828 in words is "sixty-four billion, eight hundred eighty-six million, two hundred twenty-nine thousand, eight hundred twenty-eight".