11778511848 has 16 divisors (see below), whose sum is σ = 29446279680. Its totient is φ = 3926170608.

The previous prime is 11778511847. The next prime is 11778511861. The reversal of 11778511848 is 84811587711.

It is a self number, because there is not a number n which added to its sum of digits gives 11778511848.

It is not an unprimeable number, because it can be changed into a prime (11778511847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245385640 + ... + 245385687.

It is an arithmetic number, because the mean of its divisors is an integer number (1840392480).

Almost surely, 2^11778511848 is an apocalyptic number.

It is an amenable number.

11778511848 is an abundant number, since it is smaller than the sum of its proper divisors (17667767832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11778511848 is a wasteful number, since it uses less digits than its factorization.

11778511848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490771336 (or 490771332 counting only the distinct ones).

The product of its digits is 501760, while the sum is 51.

The spelling of 11778511848 in words is "eleven billion, seven hundred seventy-eight million, five hundred eleven thousand, eight hundred forty-eight".