11982687802 has 4 divisors (see below), whose sum is σ = 17974031706. Its totient is φ = 5991343900.

The previous prime is 11982687781. The next prime is 11982687803. The reversal of 11982687802 is 20878628911.

It is a happy number.

11982687802 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11774203081 + 208484721 = 108509^2 + 14439^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11982687802.

It is not an unprimeable number, because it can be changed into a prime (11982687803) 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 as a sum of consecutive naturals, namely, 2995671949 + ... + 2995671952.

Almost surely, 2^11982687802 is an apocalyptic number.

11982687802 is a deficient number, since it is larger than the sum of its proper divisors (5991343904).

11982687802 is an equidigital number, since it uses as much as digits as its factorization.

11982687802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5991343903.

The product of its (nonzero) digits is 774144, while the sum is 52.

The spelling of 11982687802 in words is "eleven billion, nine hundred eighty-two million, six hundred eighty-seven thousand, eight hundred two".