378834534343 has 2 divisors, whose sum is σ = 378834534344. Its totient is φ = 378834534342.

The previous prime is 378834534329. The next prime is 378834534361. The reversal of 378834534343 is 343435438873.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378834534343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378834504343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189417267171 + 189417267172.

It is an arithmetic number, because the mean of its divisors is an integer number (189417267172).

Almost surely, 2^378834534343 is an apocalyptic number.

378834534343 is a deficient number, since it is larger than the sum of its proper divisors (1).

378834534343 is an equidigital number, since it uses as much as digits as its factorization.

378834534343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34836480, while the sum is 55.

The spelling of 378834534343 in words is "three hundred seventy-eight billion, eight hundred thirty-four million, five hundred thirty-four thousand, three hundred forty-three".