109834788390 has 128 divisors (see below), whose sum is σ = 274229452800. Its totient is φ = 28124236800.

The previous prime is 109834788367. The next prime is 109834788391. The reversal of 109834788390 is 93887438901.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109834788391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 100122322 + ... + 100123418.

It is an arithmetic number, because the mean of its divisors is an integer number (2142417600).

Almost surely, 2^109834788390 is an apocalyptic number.

109834788390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 109834788390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137114726400).

109834788390 is an abundant number, since it is smaller than the sum of its proper divisors (164394664410).

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

109834788390 is a wasteful number, since it uses less digits than its factorization.

109834788390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878.

The product of its (nonzero) digits is 10450944, while the sum is 60.

The spelling of 109834788390 in words is "one hundred nine billion, eight hundred thirty-four million, seven hundred eighty-eight thousand, three hundred ninety".