280528997753 has 2 divisors, whose sum is σ = 280528997754. Its totient is φ = 280528997752.

The previous prime is 280528997743. The next prime is 280528997797. The reversal of 280528997753 is 357799825082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243254131264 + 37274866489 = 493208^2 + 193067^2 .

It is a cyclic number.

It is not a de Polignac number, because 280528997753 - 2¹⁸ = 280528735609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 280528997753.

It is not a weakly prime, because it can be changed into another prime (280528997743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140264498876 + 140264498877.

It is an arithmetic number, because the mean of its divisors is an integer number (140264498877).

Almost surely, 2^280528997753 is an apocalyptic number.

It is an amenable number.

280528997753 is a deficient number, since it is larger than the sum of its proper divisors (1).

280528997753 is an equidigital number, since it uses as much as digits as its factorization.

280528997753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76204800, while the sum is 65.

The spelling of 280528997753 in words is "two hundred eighty billion, five hundred twenty-eight million, nine hundred ninety-seven thousand, seven hundred fifty-three".