108800987844557 has 2 divisors, whose sum is σ = 108800987844558. Its totient is φ = 108800987844556.

The previous prime is 108800987844421. The next prime is 108800987844613. The reversal of 108800987844557 is 755448789008801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107954157229801 + 846830614756 = 10390099^2 + 920234^2 .

It is an emirp because it is prime and its reverse (755448789008801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108800987844557 - 2¹⁰ = 108800987843533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108800987834557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54400493922278 + 54400493922279.

It is an arithmetic number, because the mean of its divisors is an integer number (54400493922279).

Almost surely, 2^{108800987844557} is an apocalyptic number.

It is an amenable number.

108800987844557 is a deficient number, since it is larger than the sum of its proper divisors (1).

108800987844557 is an equidigital number, since it uses as much as digits as its factorization.

108800987844557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 722534400, while the sum is 74.

The spelling of 108800987844557 in words is "one hundred eight trillion, eight hundred billion, nine hundred eighty-seven million, eight hundred forty-four thousand, five hundred fifty-seven".