108520352978 has 8 divisors (see below), whose sum is σ = 164221065468. Its totient is φ = 53779997824.

The previous prime is 108520352953. The next prime is 108520352989. The reversal of 108520352978 is 879253025801.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 108298253569 + 222099409 = 329087^2 + 14903^2 .

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, 240089051 + ... + 240089502.

Almost surely, 2^108520352978 is an apocalyptic number.

108520352978 is a deficient number, since it is larger than the sum of its proper divisors (55700712490).

108520352978 is a wasteful number, since it uses less digits than its factorization.

108520352978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480178668.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 108520352978 in words is "one hundred eight billion, five hundred twenty million, three hundred fifty-two thousand, nine hundred seventy-eight".