378815628467 has 2 divisors, whose sum is σ = 378815628468. Its totient is φ = 378815628466.

The previous prime is 378815628463. The next prime is 378815628481. The reversal of 378815628467 is 764826518873.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378815628467 - 2² = 378815628463 is a prime.

It is not a weakly prime, because it can be changed into another prime (378815628463) 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, 189407814233 + 189407814234.

It is an arithmetic number, because the mean of its divisors is an integer number (189407814234).

Almost surely, 2^378815628467 is an apocalyptic number.

378815628467 is a deficient number, since it is larger than the sum of its proper divisors (1).

378815628467 is an equidigital number, since it uses as much as digits as its factorization.

378815628467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108380160, while the sum is 65.

The spelling of 378815628467 in words is "three hundred seventy-eight billion, eight hundred fifteen million, six hundred twenty-eight thousand, four hundred sixty-seven".