260403660479 has 2 divisors, whose sum is σ = 260403660480. Its totient is φ = 260403660478.

The previous prime is 260403660457. The next prime is 260403660529. The reversal of 260403660479 is 974066304062.

260403660479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 260403660479 - 2²⁸ = 260135225023 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260403660779) 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, 130201830239 + 130201830240.

It is an arithmetic number, because the mean of its divisors is an integer number (130201830240).

Almost surely, 2^260403660479 is an apocalyptic number.

260403660479 is a deficient number, since it is larger than the sum of its proper divisors (1).

260403660479 is an equidigital number, since it uses as much as digits as its factorization.

260403660479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 47.

The spelling of 260403660479 in words is "two hundred sixty billion, four hundred three million, six hundred sixty thousand, four hundred seventy-nine".