201812628108 has 192 divisors, whose sum is σ = 593117199360. Its totient is φ = 51989603328.

The previous prime is 201812628107. The next prime is 201812628113. The reversal of 201812628108 is 801826218102.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (201812628107) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13245991 + ... + 13261217.

It is an arithmetic number, because the mean of its divisors is an integer number (3089152080).

Almost surely, 2^201812628108 is an apocalyptic number.

201812628108 is a gapful number since it is divisible by the number (28) 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 201812628108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296558599680).

201812628108 is an abundant number, since it is smaller than the sum of its proper divisors (391304571252).

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

201812628108 is a wasteful number, since it uses less digits than its factorization.

201812628108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15536 (or 15534 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 39.

The spelling of 201812628108 in words is "two hundred one billion, eight hundred twelve million, six hundred twenty-eight thousand, one hundred eight".