108915569910461 has 2 divisors, whose sum is σ = 108915569910462. Its totient is φ = 108915569910460.

The previous prime is 108915569910457. The next prime is 108915569910533. The reversal of 108915569910461 is 164019965519801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99427820822500 + 9487749087961 = 9971350^2 + 3080219^2 .

It is a cyclic number.

It is not a de Polignac number, because 108915569910461 - 2² = 108915569910457 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108915569910361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54457784955230 + 54457784955231.

It is an arithmetic number, because the mean of its divisors is an integer number (54457784955231).

Almost surely, 2^{108915569910461} is an apocalyptic number.

It is an amenable number.

108915569910461 is a deficient number, since it is larger than the sum of its proper divisors (1).

108915569910461 is an equidigital number, since it uses as much as digits as its factorization.

108915569910461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20995200, while the sum is 65.

The spelling of 108915569910461 in words is "one hundred eight trillion, nine hundred fifteen billion, five hundred sixty-nine million, nine hundred ten thousand, four hundred sixty-one".