11783864257 has 16 divisors (see below), whose sum is σ = 13062057984. Its totient is φ = 10540530000.

The previous prime is 11783864237. The next prime is 11783864293. The reversal of 11783864257 is 75246838711.

It is a de Polignac number, because none of the positive numbers 2^k-11783864257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11783864207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 662632 + ... + 680182.

It is an arithmetic number, because the mean of its divisors is an integer number (816378624).

Almost surely, 2^11783864257 is an apocalyptic number.

It is an amenable number.

11783864257 is a deficient number, since it is larger than the sum of its proper divisors (1278193727).

11783864257 is a wasteful number, since it uses less digits than its factorization.

11783864257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18540.

The product of its digits is 2257920, while the sum is 52.

The spelling of 11783864257 in words is "eleven billion, seven hundred eighty-three million, eight hundred sixty-four thousand, two hundred fifty-seven".