1270443242879 has 4 divisors (see below), whose sum is σ = 1272190758384. Its totient is φ = 1268695727376.

The previous prime is 1270443242863. The next prime is 1270443242897. The reversal of 1270443242879 is 9782423440721.

It is a happy number.

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 1270443242879 - 2⁴ = 1270443242863 is a prime.

It is a super-2 number, since 2×1270443242879² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1270443242879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1270443292879) 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, 873756662 + ... + 873758115.

It is an arithmetic number, because the mean of its divisors is an integer number (318047689596).

Almost surely, 2^{1270443242879} is an apocalyptic number.

1270443242879 is a deficient number, since it is larger than the sum of its proper divisors (1747515505).

1270443242879 is an equidigital number, since it uses as much as digits as its factorization.

1270443242879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747515504.

The product of its (nonzero) digits is 5419008, while the sum is 53.

The spelling of 1270443242879 in words is "one trillion, two hundred seventy billion, four hundred forty-three million, two hundred forty-two thousand, eight hundred seventy-nine".