378040079 has 2 divisors, whose sum is σ = 378040080. Its totient is φ = 378040078.

The previous prime is 378040057. The next prime is 378040097. The reversal of 378040079 is 970040873.

Together with next prime (378040097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378040079 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378040099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189020039 + 189020040.

It is an arithmetic number, because the mean of its divisors is an integer number (189020040).

Almost surely, 2^378040079 is an apocalyptic number.

378040079 is a deficient number, since it is larger than the sum of its proper divisors (1).

378040079 is an equidigital number, since it uses as much as digits as its factorization.

378040079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 378040079 is about 19443.2527885640. The cubic root of 378040079 is about 723.0682328711.

The spelling of 378040079 in words is "three hundred seventy-eight million, forty thousand, seventy-nine".