1881765388336 has 20 divisors (see below), whose sum is σ = 3663199690264. Its totient is φ = 936423532800.

The previous prime is 1881765388297. The next prime is 1881765388409. The reversal of 1881765388336 is 6338835671881.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 278694105 + ... + 278700856.

Almost surely, 2^{1881765388336} is an apocalyptic number.

1881765388336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1881765388336 is a deficient number, since it is larger than the sum of its proper divisors (1781434301928).

1881765388336 is a wasteful number, since it uses less digits than its factorization.

1881765388336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557395180 (or 557395174 counting only the distinct ones).

The product of its digits is 139345920, while the sum is 67.

The spelling of 1881765388336 in words is "one trillion, eight hundred eighty-one billion, seven hundred sixty-five million, three hundred eighty-eight thousand, three hundred thirty-six".