1081863316386 has 32 divisors (see below), whose sum is σ = 2404203422400. Its totient is φ = 360611697600.

The previous prime is 1081863316381. The next prime is 1081863316397. The reversal of 1081863316386 is 6836133681801.

It is a super-2 number, since 2×1081863316386² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1081863316381) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2008650 + ... + 2489658.

It is an arithmetic number, because the mean of its divisors is an integer number (75131356950).

Almost surely, 2^{1081863316386} is an apocalyptic number.

1081863316386 is an abundant number, since it is smaller than the sum of its proper divisors (1322340106014).

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

1081863316386 is a wasteful number, since it uses less digits than its factorization.

1081863316386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522671 (or 522665 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 1081863316386 in words is "one trillion, eighty-one billion, eight hundred sixty-three million, three hundred sixteen thousand, three hundred eighty-six".