378118357 has 2 divisors, whose sum is σ = 378118358. Its totient is φ = 378118356.

The previous prime is 378118339. The next prime is 378118379. The reversal of 378118357 is 753811873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 215326276 + 162792081 = 14674^2 + 12759^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378118357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378118387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189059178 + 189059179.

It is an arithmetic number, because the mean of its divisors is an integer number (189059179).

Almost surely, 2^378118357 is an apocalyptic number.

It is an amenable number.

378118357 is a deficient number, since it is larger than the sum of its proper divisors (1).

378118357 is an equidigital number, since it uses as much as digits as its factorization.

378118357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 43.

The square root of 378118357 is about 19445.2656705945. The cubic root of 378118357 is about 723.1181362474.

The spelling of 378118357 in words is "three hundred seventy-eight million, one hundred eighteen thousand, three hundred fifty-seven".