108721080893 has 4 divisors (see below), whose sum is σ = 108835164828. Its totient is φ = 108606996960.

The previous prime is 108721080803. The next prime is 108721080943. The reversal of 108721080893 is 398080127801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 77527162969 + 31193917924 = 278437^2 + 176618^2 .

It is a cyclic number.

It is not a de Polignac number, because 108721080893 - 2¹⁰ = 108721079869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108721080803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57040538 + ... + 57042443.

It is an arithmetic number, because the mean of its divisors is an integer number (27208791207).

Almost surely, 2^108721080893 is an apocalyptic number.

It is an amenable number.

108721080893 is a deficient number, since it is larger than the sum of its proper divisors (114083935).

108721080893 is an equidigital number, since it uses as much as digits as its factorization.

108721080893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114083934.

The product of its (nonzero) digits is 193536, while the sum is 47.

The spelling of 108721080893 in words is "one hundred eight billion, seven hundred twenty-one million, eighty thousand, eight hundred ninety-three".