780378383873087 has 2 divisors, whose sum is σ = 780378383873088. Its totient is φ = 780378383873086.

The previous prime is 780378383873057. The next prime is 780378383873113.

780378383873087 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 780378383873087 - 2¹⁰ = 780378383872063 is a prime.

It is a super-2 number, since 2×780378383873087² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (780378383873057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 390189191936543 + 390189191936544.

It is an arithmetic number, because the mean of its divisors is an integer number (390189191936544).

Almost surely, 2^{780378383873087} is an apocalyptic number.

780378383873087 is a deficient number, since it is larger than the sum of its proper divisors (1).

780378383873087 is an equidigital number, since it uses as much as digits as its factorization.

780378383873087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6372753408, while the sum is 80.

The spelling of 780378383873087 in words is "seven hundred eighty trillion, three hundred seventy-eight billion, three hundred eighty-three million, eight hundred seventy-three thousand, eighty-seven".