11978282636 has 12 divisors (see below), whose sum is σ = 21021379512. Its totient is φ = 5972174208.

The previous prime is 11978282633. The next prime is 11978282639. The reversal of 11978282636 is 63628287911.

11978282636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11978282633) and next prime (11978282639).

It is not an unprimeable number, because it can be changed into a prime (11978282633) 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 3 ways as a sum of consecutive naturals, for example, 4240190 + ... + 4243013.

It is an arithmetic number, because the mean of its divisors is an integer number (1751781626).

Almost surely, 2^11978282636 is an apocalyptic number.

It is an amenable number.

11978282636 is a deficient number, since it is larger than the sum of its proper divisors (9043096876).

11978282636 is a wasteful number, since it uses less digits than its factorization.

11978282636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8483560 (or 8483558 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 53.

The spelling of 11978282636 in words is "eleven billion, nine hundred seventy-eight million, two hundred eighty-two thousand, six hundred thirty-six".