378276551689 has 2 divisors, whose sum is σ = 378276551690. Its totient is φ = 378276551688.

The previous prime is 378276551677. The next prime is 378276551701. The reversal of 378276551689 is 986155672873.

It is a balanced prime because it is at equal distance from previous prime (378276551677) and next prime (378276551701).

It can be written as a sum of positive squares in only one way, i.e., 378274201600 + 2350089 = 615040^2 + 1533^2 .

It is a cyclic number.

It is not a de Polignac number, because 378276551689 - 2²⁵ = 378242997257 is a prime.

It is not a weakly prime, because it can be changed into another prime (378276551089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189138275844 + 189138275845.

It is an arithmetic number, because the mean of its divisors is an integer number (189138275845).

Almost surely, 2^378276551689 is an apocalyptic number.

It is an amenable number.

378276551689 is a deficient number, since it is larger than the sum of its proper divisors (1).

378276551689 is an equidigital number, since it uses as much as digits as its factorization.

378276551689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 152409600, while the sum is 67.

The spelling of 378276551689 in words is "three hundred seventy-eight billion, two hundred seventy-six million, five hundred fifty-one thousand, six hundred eighty-nine".