108601091978 has 8 divisors (see below), whose sum is σ = 162913433760. Its totient is φ = 54296614060.

The previous prime is 108601091903. The next prime is 108601091987. The reversal of 108601091978 is 879190106801.

108601091978 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1931318 + ... + 1986753.

It is an arithmetic number, because the mean of its divisors is an integer number (20364179220).

Almost surely, 2^108601091978 is an apocalyptic number.

108601091978 is a deficient number, since it is larger than the sum of its proper divisors (54312341782).

108601091978 is a wasteful number, since it uses less digits than its factorization.

108601091978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3931932.

The product of its (nonzero) digits is 217728, while the sum is 50.

The spelling of 108601091978 in words is "one hundred eight billion, six hundred one million, ninety-one thousand, nine hundred seventy-eight".