11778516740 has 12 divisors (see below), whose sum is σ = 24734885196. Its totient is φ = 4711406688.

The previous prime is 11778516713. The next prime is 11778516773. The reversal of 11778516740 is 4761587711.

It is a happy number.

11778516740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8620751104 + 3157765636 = 92848^2 + 56194^2 .

It is an unprimeable number.

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, 294462899 + ... + 294462938.

It is an arithmetic number, because the mean of its divisors is an integer number (2061240433).

Almost surely, 2^11778516740 is an apocalyptic number.

11778516740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11778516740 is an abundant number, since it is smaller than the sum of its proper divisors (12956368456).

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

11778516740 is a wasteful number, since it uses less digits than its factorization.

11778516740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588925846 (or 588925844 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 47.

The spelling of 11778516740 in words is "eleven billion, seven hundred seventy-eight million, five hundred sixteen thousand, seven hundred forty".