108983172781 has 8 divisors (see below), whose sum is σ = 124554452544. Its totient is φ = 93412456800.

The previous prime is 108983172769. The next prime is 108983172803. The reversal of 108983172781 is 187271389801.

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

It is a cyclic number.

It is not a de Polignac number, because 108983172781 - 2⁹ = 108983172269 is a prime.

It is a super-2 number, since 2×108983172781² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108983178781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424566 + ... + 631048.

It is an arithmetic number, because the mean of its divisors is an integer number (15569306568).

Almost surely, 2^108983172781 is an apocalyptic number.

It is an amenable number.

108983172781 is a deficient number, since it is larger than the sum of its proper divisors (15571279763).

108983172781 is an equidigital number, since it uses as much as digits as its factorization.

108983172781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281891.

The product of its (nonzero) digits is 1354752, while the sum is 55.

The spelling of 108983172781 in words is "one hundred eight billion, nine hundred eighty-three million, one hundred seventy-two thousand, seven hundred eighty-one".