378627378187943 has 2 divisors, whose sum is σ = 378627378187944. Its totient is φ = 378627378187942.

The previous prime is 378627378187939. The next prime is 378627378187979. The reversal of 378627378187943 is 349781873726873.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378627378187943 - 2² = 378627378187939 is a prime.

It is a super-2 number, since 2×378627378187943² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378627378184943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189313689093971 + 189313689093972.

It is an arithmetic number, because the mean of its divisors is an integer number (189313689093972).

Almost surely, 2^{378627378187943} is an apocalyptic number.

378627378187943 is a deficient number, since it is larger than the sum of its proper divisors (1).

378627378187943 is an equidigital number, since it uses as much as digits as its factorization.

378627378187943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14338695168, while the sum is 83.

The spelling of 378627378187943 in words is "three hundred seventy-eight trillion, six hundred twenty-seven billion, three hundred seventy-eight million, one hundred eighty-seven thousand, nine hundred forty-three".