1279538848967 has 4 divisors (see below), whose sum is σ = 1279587595440. Its totient is φ = 1279490102496.

The previous prime is 1279538848937. The next prime is 1279538848979. The reversal of 1279538848967 is 7698488359721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1279538848967 - 2¹⁶ = 1279538783431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1279538848937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24333842 + ... + 24386367.

It is an arithmetic number, because the mean of its divisors is an integer number (319896898860).

Almost surely, 2^{1279538848967} is an apocalyptic number.

1279538848967 is a deficient number, since it is larger than the sum of its proper divisors (48746473).

1279538848967 is an equidigital number, since it uses as much as digits as its factorization.

1279538848967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48746472.

The product of its digits is 1463132160, while the sum is 77.

The spelling of 1279538848967 in words is "one trillion, two hundred seventy-nine billion, five hundred thirty-eight million, eight hundred forty-eight thousand, nine hundred sixty-seven".