109638663758 has 16 divisors (see below), whose sum is σ = 177432415440. Its totient is φ = 50509944576.

The previous prime is 109638663731. The next prime is 109638663779. The reversal of 109638663758 is 857366836901.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 109638663758.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3840323 + ... + 3868766.

It is an arithmetic number, because the mean of its divisors is an integer number (11089525965).

Almost surely, 2^109638663758 is an apocalyptic number.

109638663758 is a deficient number, since it is larger than the sum of its proper divisors (67793751682).

109638663758 is a wasteful number, since it uses less digits than its factorization.

109638663758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7709651.

The product of its (nonzero) digits is 39191040, while the sum is 62.

The spelling of 109638663758 in words is "one hundred nine billion, six hundred thirty-eight million, six hundred sixty-three thousand, seven hundred fifty-eight".