109964528881 has 3 divisors (see below), whose sum is σ = 109964860491. Its totient is φ = 109964197272.

The previous prime is 109964528867. The next prime is 109964528887. The reversal of 109964528881 is 188825469901.

The square root of 109964528881 is 331609.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 188825469901 = 414991 ⋅455011.

It can be written as a sum of positive squares in only one way, i.e., 71187042481 + 38777486400 = 266809^2 + 196920^2 .

It is not a de Polignac number, because 109964528881 - 2²⁵ = 109930974449 is a prime.

It is a super-2 number, since 2×109964528881² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109964528887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 165805 + ... + 497413.

It is an arithmetic number, because the mean of its divisors is an integer number (36654953497).

Almost surely, 2^109964528881 is an apocalyptic number.

109964528881 is the 331609-th square number.

109964528881 is the 165805-th centered octagonal number.

It is an amenable number.

109964528881 is a deficient number, since it is larger than the sum of its proper divisors (331610).

109964528881 is an frugal number, since it uses more digits than its factorization.

109964528881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663218 (or 331609 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 61.

The spelling of 109964528881 in words is "one hundred nine billion, nine hundred sixty-four million, five hundred twenty-eight thousand, eight hundred eighty-one".