378648304589 has 2 divisors, whose sum is σ = 378648304590. Its totient is φ = 378648304588.

The previous prime is 378648304579. The next prime is 378648304597. The reversal of 378648304589 is 985403846873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 288202554025 + 90445750564 = 536845^2 + 300742^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378648304589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378648304579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189324152294 + 189324152295.

It is an arithmetic number, because the mean of its divisors is an integer number (189324152295).

Almost surely, 2^378648304589 is an apocalyptic number.

It is an amenable number.

378648304589 is a deficient number, since it is larger than the sum of its proper divisors (1).

378648304589 is an equidigital number, since it uses as much as digits as its factorization.

378648304589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139345920, while the sum is 65.

The spelling of 378648304589 in words is "three hundred seventy-eight billion, six hundred forty-eight million, three hundred four thousand, five hundred eighty-nine".