1385486791816 has 256 divisors, whose sum is σ = 3059187264000. Its totient is φ = 585846743040.

The previous prime is 1385486791811. The next prime is 1385486791817. The reversal of 1385486791816 is 6181976845831.

It is not an unprimeable number, because it can be changed into a prime (1385486791811) 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 63 ways as a sum of consecutive naturals, for example, 1132858581 + ... + 1132859803.

It is an arithmetic number, because the mean of its divisors is an integer number (11949950250).

Almost surely, 2^{1385486791816} is an apocalyptic number.

It is an amenable number.

1385486791816 is an abundant number, since it is smaller than the sum of its proper divisors (1673700472184).

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

1385486791816 is a wasteful number, since it uses less digits than its factorization.

1385486791816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377 (or 1339 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 67.

The spelling of 1385486791816 in words is "one trillion, three hundred eighty-five billion, four hundred eighty-six million, seven hundred ninety-one thousand, eight hundred sixteen".