108954118517 has 2 divisors, whose sum is σ = 108954118518. Its totient is φ = 108954118516.

The previous prime is 108954118513. The next prime is 108954118541. The reversal of 108954118517 is 715811459801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91897497316 + 17056621201 = 303146^2 + 130601^2 .

It is a cyclic number.

It is not a de Polignac number, because 108954118517 - 2² = 108954118513 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108954118513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54477059258 + 54477059259.

It is an arithmetic number, because the mean of its divisors is an integer number (54477059259).

Almost surely, 2^108954118517 is an apocalyptic number.

It is an amenable number.

108954118517 is a deficient number, since it is larger than the sum of its proper divisors (1).

108954118517 is an equidigital number, since it uses as much as digits as its factorization.

108954118517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 50.

The spelling of 108954118517 in words is "one hundred eight billion, nine hundred fifty-four million, one hundred eighteen thousand, five hundred seventeen".