11885009687 has 2 divisors, whose sum is σ = 11885009688. Its totient is φ = 11885009686.

The previous prime is 11885009671. The next prime is 11885009749. The reversal of 11885009687 is 78690058811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11885009687 - 2⁴ = 11885009671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11885003687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5942504843 + 5942504844.

It is an arithmetic number, because the mean of its divisors is an integer number (5942504844).

Almost surely, 2^11885009687 is an apocalyptic number.

11885009687 is a deficient number, since it is larger than the sum of its proper divisors (1).

11885009687 is an equidigital number, since it uses as much as digits as its factorization.

11885009687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 53.

The spelling of 11885009687 in words is "eleven billion, eight hundred eighty-five million, nine thousand, six hundred eighty-seven".