11785430539 has 2 divisors, whose sum is σ = 11785430540. Its totient is φ = 11785430538.

The previous prime is 11785430507. The next prime is 11785430581. The reversal of 11785430539 is 93503458711.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11785430539 - 2⁵ = 11785430507 is a prime.

It is not a weakly prime, because it can be changed into another prime (11785437539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5892715269 + 5892715270.

It is an arithmetic number, because the mean of its divisors is an integer number (5892715270).

Almost surely, 2^11785430539 is an apocalyptic number.

11785430539 is a deficient number, since it is larger than the sum of its proper divisors (1).

11785430539 is an equidigital number, since it uses as much as digits as its factorization.

11785430539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 11785430539 in words is "eleven billion, seven hundred eighty-five million, four hundred thirty thousand, five hundred thirty-nine".