780141863 has 2 divisors, whose sum is σ = 780141864. Its totient is φ = 780141862.

The previous prime is 780141833. The next prime is 780141911. The reversal of 780141863 is 368141087.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 780141863 - 2¹⁰ = 780140839 is a prime.

It is a super-2 number, since 2×780141863² = 1217242652810221538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (780141833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 390070931 + 390070932.

It is an arithmetic number, because the mean of its divisors is an integer number (390070932).

Almost surely, 2^780141863 is an apocalyptic number.

780141863 is a deficient number, since it is larger than the sum of its proper divisors (1).

780141863 is an equidigital number, since it uses as much as digits as its factorization.

780141863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 780141863 is about 27931.0197271779. The cubic root of 780141863 is about 920.5722113726.

The spelling of 780141863 in words is "seven hundred eighty million, one hundred forty-one thousand, eight hundred sixty-three".