109563511993386 has 128 divisors (see below), whose sum is σ = 244668443443200. Its totient is φ = 32428282810560.

The previous prime is 109563511993381. The next prime is 109563511993409. The reversal of 109563511993386 is 683399115365901.

It is a self number, because there is not a number n which added to its sum of digits gives 109563511993386.

It is not an unprimeable number, because it can be changed into a prime (109563511993381) 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, 412152165 + ... + 412417911.

It is an arithmetic number, because the mean of its divisors is an integer number (1911472214400).

Almost surely, 2^{109563511993386} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109563511993386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122334221721600).

109563511993386 is an abundant number, since it is smaller than the sum of its proper divisors (135104931449814).

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

109563511993386 is a wasteful number, since it uses less digits than its factorization.

109563511993386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266504.

The product of its (nonzero) digits is 141717600, while the sum is 69.

The spelling of 109563511993386 in words is "one hundred nine trillion, five hundred sixty-three billion, five hundred eleven million, nine hundred ninety-three thousand, three hundred eighty-six".