11978275256 has 32 divisors (see below), whose sum is σ = 23366369280. Its totient is φ = 5750287200.

The previous prime is 11978275237. The next prime is 11978275273. The reversal of 11978275256 is 65257287911.

It is a junction number, because it is equal to n+sod(n) for n = 11978275198 and 11978275207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158660 + ... + 221651.

It is an arithmetic number, because the mean of its divisors is an integer number (730199040).

Almost surely, 2^11978275256 is an apocalyptic number.

It is an amenable number.

11978275256 is a deficient number, since it is larger than the sum of its proper divisors (11388094024).

11978275256 is a wasteful number, since it uses less digits than its factorization.

11978275256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380475 (or 380471 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 53.

The spelling of 11978275256 in words is "eleven billion, nine hundred seventy-eight million, two hundred seventy-five thousand, two hundred fifty-six".