378481351 has 2 divisors, whose sum is σ = 378481352. Its totient is φ = 378481350.

The previous prime is 378481343. The next prime is 378481361. The reversal of 378481351 is 153184873.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378481351 - 2³ = 378481343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378481331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189240675 + 189240676.

It is an arithmetic number, because the mean of its divisors is an integer number (189240676).

Almost surely, 2^378481351 is an apocalyptic number.

378481351 is a deficient number, since it is larger than the sum of its proper divisors (1).

378481351 is an equidigital number, since it uses as much as digits as its factorization.

378481351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 40.

The square root of 378481351 is about 19454.5971687928. The cubic root of 378481351 is about 723.3494602835.

The spelling of 378481351 in words is "three hundred seventy-eight million, four hundred eighty-one thousand, three hundred fifty-one".