280504995498647 has 2 divisors, whose sum is σ = 280504995498648. Its totient is φ = 280504995498646.

The previous prime is 280504995498527. The next prime is 280504995498701. The reversal of 280504995498647 is 746894599405082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 280504995498647 - 2²⁸ = 280504727063191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (280504995498347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140252497749323 + 140252497749324.

It is an arithmetic number, because the mean of its divisors is an integer number (140252497749324).

Almost surely, 2^{280504995498647} is an apocalyptic number.

280504995498647 is a deficient number, since it is larger than the sum of its proper divisors (1).

280504995498647 is an equidigital number, since it uses as much as digits as its factorization.

280504995498647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6270566400, while the sum is 80.

The spelling of 280504995498647 in words is "two hundred eighty trillion, five hundred four billion, nine hundred ninety-five million, four hundred ninety-eight thousand, six hundred forty-seven".