11783857280 has 64 divisors (see below), whose sum is σ = 30337788600. Its totient is φ = 4350959616.

The previous prime is 11783857271. The next prime is 11783857307. The reversal of 11783857280 is 8275838711.

11783857280 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 4 ways, for example, as 2979413056 + 8804444224 = 54584^2 + 93832^2 .

It is a tau number, because it is divible by the number of its divisors (64).

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 7 ways as a sum of consecutive naturals, for example, 699845 + ... + 716484.

Almost surely, 2^11783857280 is an apocalyptic number.

11783857280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11783857280 is an abundant number, since it is smaller than the sum of its proper divisors (18553931320).

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

11783857280 is a wasteful number, since it uses less digits than its factorization.

11783857280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416361 (or 1416349 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 50.

The spelling of 11783857280 in words is "eleven billion, seven hundred eighty-three million, eight hundred fifty-seven thousand, two hundred eighty".