109428428736 has 392 divisors, whose sum is σ = 359798112000. Its totient is φ = 32728250880.

The previous prime is 109428428699. The next prime is 109428428743. The reversal of 109428428736 is 637824824901.

109428428736 is a `hidden beast` number, since 109 + 42 + 8 + 428 + 73 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

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 55 ways as a sum of consecutive naturals, for example, 40542715 + ... + 40545413.

Almost surely, 2^109428428736 is an apocalyptic number.

109428428736 is a gapful number since it is divisible by the number (16) 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 109428428736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179899056000).

109428428736 is an abundant number, since it is smaller than the sum of its proper divisors (250369683264).

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

109428428736 is an equidigital number, since it uses as much as digits as its factorization.

109428428736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2819 (or 2794 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 109428428736 in words is "one hundred nine billion, four hundred twenty-eight million, four hundred twenty-eight thousand, seven hundred thirty-six".