889105551409 has 4 divisors (see below), whose sum is σ = 917786375680. Its totient is φ = 860424727140.

The previous prime is 889105551371. The next prime is 889105551413. The reversal of 889105551409 is 904155501988.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 889105551409 - 2⁹ = 889105550897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 889105551409.

It is not an unprimeable number, because it can be changed into a prime (889105552409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14340412089 + ... + 14340412150.

It is an arithmetic number, because the mean of its divisors is an integer number (229446593920).

Almost surely, 2^889105551409 is an apocalyptic number.

It is an amenable number.

889105551409 is a deficient number, since it is larger than the sum of its proper divisors (28680824271).

889105551409 is a wasteful number, since it uses less digits than its factorization.

889105551409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28680824270.

The product of its (nonzero) digits is 2592000, while the sum is 55.

The spelling of 889105551409 in words is "eight hundred eighty-nine billion, one hundred five million, five hundred fifty-one thousand, four hundred nine".