378452937469 has 2 divisors, whose sum is σ = 378452937470. Its totient is φ = 378452937468.

The previous prime is 378452937383. The next prime is 378452937509. The reversal of 378452937469 is 964739254873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 252134536900 + 126318400569 = 502130^2 + 355413^2 .

It is an emirp because it is prime and its reverse (964739254873) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 378452937469 - 2⁷ = 378452937341 is a prime.

It is a super-2 number, since 2×378452937469² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378452937769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189226468734 + 189226468735.

It is an arithmetic number, because the mean of its divisors is an integer number (189226468735).

Almost surely, 2^378452937469 is an apocalyptic number.

It is an amenable number.

378452937469 is a deficient number, since it is larger than the sum of its proper divisors (1).

378452937469 is an equidigital number, since it uses as much as digits as its factorization.

378452937469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 274337280, while the sum is 67.

The spelling of 378452937469 in words is "three hundred seventy-eight billion, four hundred fifty-two million, nine hundred thirty-seven thousand, four hundred sixty-nine".