280807860563 has 2 divisors, whose sum is σ = 280807860564. Its totient is φ = 280807860562.

The previous prime is 280807860503. The next prime is 280807860601. The reversal of 280807860563 is 365068708082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 280807860563 - 2¹² = 280807856467 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (280807860503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140403930281 + 140403930282.

It is an arithmetic number, because the mean of its divisors is an integer number (140403930282).

Almost surely, 2^280807860563 is an apocalyptic number.

280807860563 is a deficient number, since it is larger than the sum of its proper divisors (1).

280807860563 is an equidigital number, since it uses as much as digits as its factorization.

280807860563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 280807860563 in words is "two hundred eighty billion, eight hundred seven million, eight hundred sixty thousand, five hundred sixty-three".