105419050489 has 27 divisors (see below), whose sum is σ = 114008227021. Its totient is φ = 97456849280.

The previous prime is 105419050469. The next prime is 105419050493. The reversal of 105419050489 is 984050914501.

It is a happy number.

The square root of 105419050489 is 324683.

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

It can be written as a sum of positive squares in 4 ways, for example, as 5504898025 + 99914152464 = 74195^2 + 316092^2 .

It is not a de Polignac number, because 105419050489 - 2²⁵ = 105385496057 is a prime.

It is a super-2 number, since 2×105419050489² (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 (105419050439) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 391892247 + ... + 391892515.

Almost surely, 2^105419050489 is an apocalyptic number.

105419050489 is the 324683-rd square number.

105419050489 is the 162342-nd centered octagonal number.

It is an amenable number.

105419050489 is a deficient number, since it is larger than the sum of its proper divisors (8589176532).

105419050489 is an frugal number, since it uses more digits than its factorization.

105419050489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 46.

The spelling of 105419050489 in words is "one hundred five billion, four hundred nineteen million, fifty thousand, four hundred eighty-nine".