1280696376259 has 2 divisors, whose sum is σ = 1280696376260. Its totient is φ = 1280696376258.

The previous prime is 1280696376217. The next prime is 1280696376283. The reversal of 1280696376259 is 9526736960821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1280696376259 - 2⁷ = 1280696376131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1280696376259.

It is not a weakly prime, because it can be changed into another prime (1280696376299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 640348188129 + 640348188130.

It is an arithmetic number, because the mean of its divisors is an integer number (640348188130).

Almost surely, 2^{1280696376259} is an apocalyptic number.

1280696376259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1280696376259 is an equidigital number, since it uses as much as digits as its factorization.

1280696376259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58786560, while the sum is 64.

The spelling of 1280696376259 in words is "one trillion, two hundred eighty billion, six hundred ninety-six million, three hundred seventy-six thousand, two hundred fifty-nine".