109357376520 has 128 divisors (see below), whose sum is σ = 375137568000. Its totient is φ = 24982772736.

The previous prime is 109357376507. The next prime is 109357376549. The reversal of 109357376520 is 25673753901.

It is a self number, because there is not a number n which added to its sum of digits gives 109357376520.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1603762 + ... + 1670558.

It is an arithmetic number, because the mean of its divisors is an integer number (2930762250).

Almost surely, 2^109357376520 is an apocalyptic number.

109357376520 is a gapful number since it is divisible by the number (10) 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 109357376520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187568784000).

109357376520 is an abundant number, since it is smaller than the sum of its proper divisors (265780191480).

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

109357376520 is a wasteful number, since it uses less digits than its factorization.

109357376520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68767 (or 68763 counting only the distinct ones).

The product of its (nonzero) digits is 1190700, while the sum is 48.

The spelling of 109357376520 in words is "one hundred nine billion, three hundred fifty-seven million, three hundred seventy-six thousand, five hundred twenty".