11867821082 has 16 divisors (see below), whose sum is σ = 19226041800. Its totient is φ = 5461756992.

The previous prime is 11867821081. The next prime is 11867821127. The reversal of 11867821082 is 28012876811.

It can be written as a sum of positive squares in 4 ways, for example, as 11733005761 + 134815321 = 108319^2 + 11611^2 .

It is not an unprimeable number, because it can be changed into a prime (11867821081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644873 + ... + 663020.

Almost surely, 2^11867821082 is an apocalyptic number.

11867821082 is a deficient number, since it is larger than the sum of its proper divisors (7358220718).

11867821082 is a wasteful number, since it uses less digits than its factorization.

11867821082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308257.

The product of its (nonzero) digits is 86016, while the sum is 44.

The spelling of 11867821082 in words is "eleven billion, eight hundred sixty-seven million, eight hundred twenty-one thousand, eighty-two".