378832816877 has 2 divisors, whose sum is σ = 378832816878. Its totient is φ = 378832816876.

The previous prime is 378832816771. The next prime is 378832816883. The reversal of 378832816877 is 778618238873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 343242485161 + 35590331716 = 585869^2 + 188654^2 .

It is a cyclic number.

It is not a de Polignac number, because 378832816877 - 2¹⁰ = 378832815853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378832816177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189416408438 + 189416408439.

It is an arithmetic number, because the mean of its divisors is an integer number (189416408439).

Almost surely, 2^378832816877 is an apocalyptic number.

It is an amenable number.

378832816877 is a deficient number, since it is larger than the sum of its proper divisors (1).

378832816877 is an equidigital number, since it uses as much as digits as its factorization.

378832816877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 151732224, while the sum is 68.

The spelling of 378832816877 in words is "three hundred seventy-eight billion, eight hundred thirty-two million, eight hundred sixteen thousand, eight hundred seventy-seven".