280627280617 has 2 divisors, whose sum is σ = 280627280618. Its totient is φ = 280627280616.

The previous prime is 280627280567. The next prime is 280627280621. The reversal of 280627280617 is 716082726082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 273826144656 + 6801135961 = 523284^2 + 82469^2 .

It is a cyclic number.

It is not a de Polignac number, because 280627280617 - 2³⁵ = 246267542249 is a prime.

It is not a weakly prime, because it can be changed into another prime (280627281617) 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, 140313640308 + 140313640309.

It is an arithmetic number, because the mean of its divisors is an integer number (140313640309).

Almost surely, 2^280627280617 is an apocalyptic number.

It is an amenable number.

280627280617 is a deficient number, since it is larger than the sum of its proper divisors (1).

280627280617 is an equidigital number, since it uses as much as digits as its factorization.

280627280617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 280627280617 in words is "two hundred eighty billion, six hundred twenty-seven million, two hundred eighty thousand, six hundred seventeen".