11233557783 has 24 divisors (see below), whose sum is σ = 18548869248. Its totient is φ = 6417589392.

The previous prime is 11233557781. The next prime is 11233557787. The reversal of 11233557783 is 38775533211.

11233557783 is a `hidden beast` number, since 1 + 1 + 23 + 3 + 557 + 78 + 3 = 666.

It is not a de Polignac number, because 11233557783 - 2¹ = 11233557781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11233557781) 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 23 ways as a sum of consecutive naturals, for example, 264160 + ... + 303722.

It is an arithmetic number, because the mean of its divisors is an integer number (772869552).

Almost surely, 2^11233557783 is an apocalyptic number.

11233557783 is a deficient number, since it is larger than the sum of its proper divisors (7315311465).

11233557783 is a wasteful number, since it uses less digits than its factorization.

11233557783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44083 (or 44080 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The spelling of 11233557783 in words is "eleven billion, two hundred thirty-three million, five hundred fifty-seven thousand, seven hundred eighty-three".