378385469269 has 2 divisors, whose sum is σ = 378385469270. Its totient is φ = 378385469268.

The previous prime is 378385469233. The next prime is 378385469291. The reversal of 378385469269 is 962964583873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 273628379025 + 104757090244 = 523095^2 + 323662^2 .

It is a cyclic number.

It is not a de Polignac number, because 378385469269 - 2²⁹ = 377848598357 is a prime.

It is a super-2 number, since 2×378385469269² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 378385469198 and 378385469207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378385461269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189192734634 + 189192734635.

It is an arithmetic number, because the mean of its divisors is an integer number (189192734635).

Almost surely, 2^378385469269 is an apocalyptic number.

It is an amenable number.

378385469269 is a deficient number, since it is larger than the sum of its proper divisors (1).

378385469269 is an equidigital number, since it uses as much as digits as its factorization.

378385469269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 470292480, while the sum is 70.

The spelling of 378385469269 in words is "three hundred seventy-eight billion, three hundred eighty-five million, four hundred sixty-nine thousand, two hundred sixty-nine".