1279770347563 has 2 divisors, whose sum is σ = 1279770347564. Its totient is φ = 1279770347562.

The previous prime is 1279770347491. The next prime is 1279770347573. The reversal of 1279770347563 is 3657430779721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1279770347563 - 2²⁵ = 1279736793131 is a prime.

It is not a weakly prime, because it can be changed into another prime (1279770347573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639885173781 + 639885173782.

It is an arithmetic number, because the mean of its divisors is an integer number (639885173782).

Almost surely, 2^{1279770347563} is an apocalyptic number.

1279770347563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1279770347563 is an equidigital number, since it uses as much as digits as its factorization.

1279770347563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46675440, while the sum is 61.

The spelling of 1279770347563 in words is "one trillion, two hundred seventy-nine billion, seven hundred seventy million, three hundred forty-seven thousand, five hundred sixty-three".