1278413804600 has 24 divisors (see below), whose sum is σ = 2972312096160. Its totient is φ = 511365521760.

The previous prime is 1278413804579. The next prime is 1278413804641. The reversal of 1278413804600 is 64083148721.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 3196034312 + ... + 3196034711.

It is an arithmetic number, because the mean of its divisors is an integer number (123846337340).

Almost surely, 2^{1278413804600} is an apocalyptic number.

1278413804600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1278413804600 is an abundant number, since it is smaller than the sum of its proper divisors (1693898291560).

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

1278413804600 is a wasteful number, since it uses less digits than its factorization.

1278413804600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6392069039 (or 6392069030 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 1278413804600 in words is "one trillion, two hundred seventy-eight billion, four hundred thirteen million, eight hundred four thousand, six hundred".