378755320429 has 2 divisors, whose sum is σ = 378755320430. Its totient is φ = 378755320428.

The previous prime is 378755320417. The next prime is 378755320457. The reversal of 378755320429 is 924023557873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 333388450404 + 45366870025 = 577398^2 + 212995^2 .

It is a cyclic number.

It is not a de Polignac number, because 378755320429 - 2⁷ = 378755320301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 378755320429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378755320409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189377660214 + 189377660215.

It is an arithmetic number, because the mean of its divisors is an integer number (189377660215).

Almost surely, 2^378755320429 is an apocalyptic number.

It is an amenable number.

378755320429 is a deficient number, since it is larger than the sum of its proper divisors (1).

378755320429 is an equidigital number, since it uses as much as digits as its factorization.

378755320429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12700800, while the sum is 55.

The spelling of 378755320429 in words is "three hundred seventy-eight billion, seven hundred fifty-five million, three hundred twenty thousand, four hundred twenty-nine".