889678378145 has 16 divisors (see below), whose sum is σ = 1132294885632. Its totient is φ = 669636749760.

The previous prime is 889678378109. The next prime is 889678378177. The reversal of 889678378145 is 541873876988.

It is not a de Polignac number, because 889678378145 - 2¹⁶ = 889678312609 is a prime.

It is a super-2 number, since 2×889678378145² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63405557 + ... + 63419586.

It is an arithmetic number, because the mean of its divisors is an integer number (70768430352).

Almost surely, 2^889678378145 is an apocalyptic number.

It is an amenable number.

889678378145 is a deficient number, since it is larger than the sum of its proper divisors (242616507487).

889678378145 is a wasteful number, since it uses less digits than its factorization.

889678378145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126825232.

The product of its digits is 650280960, while the sum is 74.

The spelling of 889678378145 in words is "eight hundred eighty-nine billion, six hundred seventy-eight million, three hundred seventy-eight thousand, one hundred forty-five".