104436909889 has 9 divisors (see below), whose sum is σ = 113093037603. Its totient is φ = 96399423432.

The previous prime is 104436909869. The next prime is 104436909917. The reversal of 104436909889 is 988909634401.

The square root of 104436909889 is 323167.

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

It can be written as a sum of positive squares in only one way, i.e., 15449247025 + 88987662864 = 124295^2 + 298308^2 .

It is not a de Polignac number, because 104436909889 - 2²⁵ = 104403355457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104436909839) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4188742 + ... + 4213600.

It is an arithmetic number, because the mean of its divisors is an integer number (12565893067).

Almost surely, 2^104436909889 is an apocalyptic number.

104436909889 is the 323167-th square number.

104436909889 is the 161584-th centered octagonal number.

It is an amenable number.

104436909889 is a deficient number, since it is larger than the sum of its proper divisors (8656127714).

104436909889 is an frugal number, since it uses more digits than its factorization.

104436909889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49744 (or 24872 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 61.

The spelling of 104436909889 in words is "one hundred four billion, four hundred thirty-six million, nine hundred nine thousand, eight hundred eighty-nine".