1279727972353 has 8 divisors (see below), whose sum is σ = 1286021779200. Its totient is φ = 1273440300528.

The previous prime is 1279727972273. The next prime is 1279727972401. The reversal of 1279727972353 is 3532797279721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1279727972353 - 2²¹ = 1279725875201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1279727972753) 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 in 7 ways as a sum of consecutive naturals, for example, 1115263 + ... + 1950196.

It is an arithmetic number, because the mean of its divisors is an integer number (160752722400).

Almost surely, 2^{1279727972353} is an apocalyptic number.

It is an amenable number.

1279727972353 is a deficient number, since it is larger than the sum of its proper divisors (6293806847).

1279727972353 is a wasteful number, since it uses less digits than its factorization.

1279727972353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3067511.

The product of its digits is 70013160, while the sum is 64.

The spelling of 1279727972353 in words is "one trillion, two hundred seventy-nine billion, seven hundred twenty-seven million, nine hundred seventy-two thousand, three hundred fifty-three".