889376458309 has 4 divisors (see below), whose sum is σ = 890973185004. Its totient is φ = 887779731616.

The previous prime is 889376458261. The next prime is 889376458441. The reversal of 889376458309 is 903854673988.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 188983217284 + 700393241025 = 434722^2 + 836895^2 .

It is a cyclic number.

It is not a de Polignac number, because 889376458309 - 2²⁵ = 889342903877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889376453309) 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, 798362512 + ... + 798363625.

It is an arithmetic number, because the mean of its divisors is an integer number (222743296251).

Almost surely, 2^889376458309 is an apocalyptic number.

It is an amenable number.

889376458309 is a deficient number, since it is larger than the sum of its proper divisors (1596726695).

889376458309 is a wasteful number, since it uses less digits than its factorization.

889376458309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596726694.

The product of its (nonzero) digits is 313528320, while the sum is 70.

The spelling of 889376458309 in words is "eight hundred eighty-nine billion, three hundred seventy-six million, four hundred fifty-eight thousand, three hundred nine".