909908100000 has 576 divisors, whose sum is σ = 3491945251200. Its totient is φ = 229858560000.

The previous prime is 909908099959. The next prime is 909908100067. The reversal of 909908100000 is 1809909.

It is a super-2 number, since 2×909908100000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 51291132 + ... + 51308868.

It is an arithmetic number, because the mean of its divisors is an integer number (6062404950).

Almost surely, 2^909908100000 is an apocalyptic number.

909908100000 is a gapful number since it is divisible by the number (90) 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 909908100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1745972625600).

909908100000 is an abundant number, since it is smaller than the sum of its proper divisors (2582037151200).

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

909908100000 is a wasteful number, since it uses less digits than its factorization.

909908100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17800 (or 17766 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

Adding to 909908100000 its reverse (1809909), we get a palindrome (909909909909).

The spelling of 909908100000 in words is "nine hundred nine billion, nine hundred eight million, one hundred thousand".