378835026589 has 2 divisors, whose sum is σ = 378835026590. Its totient is φ = 378835026588.

The previous prime is 378835026523. The next prime is 378835026631. The reversal of 378835026589 is 985620538873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320978902500 + 57856124089 = 566550^2 + 240533^2 .

It is a cyclic number.

It is not a de Polignac number, because 378835026589 - 2²¹ = 378832929437 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 378835026589.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378835096589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189417513294 + 189417513295.

It is an arithmetic number, because the mean of its divisors is an integer number (189417513295).

Almost surely, 2^378835026589 is an apocalyptic number.

It is an amenable number.

378835026589 is a deficient number, since it is larger than the sum of its proper divisors (1).

378835026589 is an equidigital number, since it uses as much as digits as its factorization.

378835026589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87091200, while the sum is 64.

The spelling of 378835026589 in words is "three hundred seventy-eight billion, eight hundred thirty-five million, twenty-six thousand, five hundred eighty-nine".