1279948243504 has 20 divisors (see below), whose sum is σ = 2834171110864. Its totient is φ = 548549247168.

The previous prime is 1279948243489. The next prime is 1279948243507. The reversal of 1279948243504 is 4053428499721.

It is not an unprimeable number, because it can be changed into a prime (1279948243507) 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, 5714054547 + ... + 5714054770.

Almost surely, 2^{1279948243504} is an apocalyptic number.

1279948243504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1279948243504 is an abundant number, since it is smaller than the sum of its proper divisors (1554222867360).

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

1279948243504 is a wasteful number, since it uses less digits than its factorization.

1279948243504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11428109332 (or 11428109326 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 58.

The spelling of 1279948243504 in words is "one trillion, two hundred seventy-nine billion, nine hundred forty-eight million, two hundred forty-three thousand, five hundred four".