108903959973 has 20 divisors (see below), whose sum is σ = 171245995360. Its totient is φ = 68781447432.

The previous prime is 108903959939. The next prime is 108903959993. The reversal of 108903959973 is 379959309801.

108903959973 is a `hidden beast` number, since 1 + 0 + 8 + 9 + 0 + 39 + 599 + 7 + 3 = 666.

It is not a de Polignac number, because 108903959973 - 2¹³ = 108903951781 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108903959973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108903959993) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35379865 + ... + 35382942.

It is an arithmetic number, because the mean of its divisors is an integer number (8562299768).

Almost surely, 2^108903959973 is an apocalyptic number.

It is an amenable number.

108903959973 is a deficient number, since it is larger than the sum of its proper divisors (62342035387).

108903959973 is an equidigital number, since it uses as much as digits as its factorization.

108903959973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70762838 (or 70762829 counting only the distinct ones).

The product of its (nonzero) digits is 16533720, while the sum is 63.

Adding to 108903959973 its sum of digits (63), we get a square (108903960036 = 330006²).

The spelling of 108903959973 in words is "one hundred eight billion, nine hundred three million, nine hundred fifty-nine thousand, nine hundred seventy-three".