102866828544 has 108 divisors (see below), whose sum is σ = 297113648832. Its totient is φ = 34228454400.

The previous prime is 102866828543. The next prime is 102866828549. The reversal of 102866828544 is 445828668201.

102866828544 is a `hidden beast` number, since 10 + 2 + 8 + 6 + 6 + 82 + 8 + 544 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102866828543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1276489 + ... + 1354679.

It is an arithmetic number, because the mean of its divisors is an integer number (2751052304).

Almost surely, 2^102866828544 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 102866828544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148556824416).

102866828544 is an abundant number, since it is smaller than the sum of its proper divisors (194246820288).

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

102866828544 is an equidigital number, since it uses as much as digits as its factorization.

102866828544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78784 (or 78767 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 54.

The spelling of 102866828544 in words is "one hundred two billion, eight hundred sixty-six million, eight hundred twenty-eight thousand, five hundred forty-four".