1316117728378 has 16 divisors (see below), whose sum is σ = 2007708140160. Its totient is φ = 646882469856.

The previous prime is 1316117728361. The next prime is 1316117728379. The reversal of 1316117728378 is 8738277116131.

It is not an unprimeable number, because it can be changed into a prime (1316117728379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3440575 + ... + 3803917.

It is an arithmetic number, because the mean of its divisors is an integer number (125481758760).

Almost surely, 2^{1316117728378} is an apocalyptic number.

1316117728378 is a deficient number, since it is larger than the sum of its proper divisors (691590411782).

1316117728378 is a wasteful number, since it uses less digits than its factorization.

1316117728378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394101.

The product of its digits is 2370816, while the sum is 55.

The spelling of 1316117728378 in words is "one trillion, three hundred sixteen billion, one hundred seventeen million, seven hundred twenty-eight thousand, three hundred seventy-eight".