1279353971712 has 88 divisors (see below), whose sum is σ = 3434477888800. Its totient is φ = 423383187456.

The previous prime is 1279353971689. The next prime is 1279353971717. The reversal of 1279353971712 is 2171793539721.

It is not an unprimeable number, because it can be changed into a prime (1279353971717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1071037 + ... + 1925052.

Almost surely, 2^{1279353971712} is an apocalyptic number.

1279353971712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1279353971712 is an abundant number, since it is smaller than the sum of its proper divisors (2155123917088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1279353971712 is a wasteful number, since it uses less digits than its factorization.

1279353971712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2996251 (or 2996233 counting only the distinct ones).

The product of its digits is 5000940, while the sum is 57.

The spelling of 1279353971712 in words is "one trillion, two hundred seventy-nine billion, three hundred fifty-three million, nine hundred seventy-one thousand, seven hundred twelve".