889146478859 has 2 divisors, whose sum is σ = 889146478860. Its totient is φ = 889146478858.

The previous prime is 889146478841. The next prime is 889146478873. The reversal of 889146478859 is 958874641988.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 889146478859 - 2⁸ = 889146478603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 889146478859.

It is not a weakly prime, because it can be changed into another prime (889146478819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444573239429 + 444573239430.

It is an arithmetic number, because the mean of its divisors is an integer number (444573239430).

Almost surely, 2^889146478859 is an apocalyptic number.

889146478859 is a deficient number, since it is larger than the sum of its proper divisors (1).

889146478859 is an equidigital number, since it uses as much as digits as its factorization.

889146478859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1114767360, while the sum is 77.

The spelling of 889146478859 in words is "eight hundred eighty-nine billion, one hundred forty-six million, four hundred seventy-eight thousand, eight hundred fifty-nine".