965985181811 has 8 divisors (see below), whose sum is σ = 1040306270640. Its totient is φ = 891666169632.

The previous prime is 965985181789. The next prime is 965985181841. The reversal of 965985181811 is 118181589569.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 965985181811 - 2⁶ = 965985181747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (965985181841) 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 7 ways as a sum of consecutive naturals, for example, 524705 + ... + 1485693.

It is an arithmetic number, because the mean of its divisors is an integer number (130038283830).

Almost surely, 2^965985181811 is an apocalyptic number.

965985181811 is a deficient number, since it is larger than the sum of its proper divisors (74321088829).

965985181811 is a wasteful number, since it uses less digits than its factorization.

965985181811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038325.

The product of its digits is 6220800, while the sum is 62.

The spelling of 965985181811 in words is "nine hundred sixty-five billion, nine hundred eighty-five million, one hundred eighty-one thousand, eight hundred eleven".