11943849587 has 2 divisors, whose sum is σ = 11943849588. Its totient is φ = 11943849586.

The previous prime is 11943849557. The next prime is 11943849629. The reversal of 11943849587 is 78594834911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11943849587 - 2¹⁴ = 11943833203 is a prime.

It is not a weakly prime, because it can be changed into another prime (11943849517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5971924793 + 5971924794.

It is an arithmetic number, because the mean of its divisors is an integer number (5971924794).

Almost surely, 2^11943849587 is an apocalyptic number.

11943849587 is a deficient number, since it is larger than the sum of its proper divisors (1).

11943849587 is an equidigital number, since it uses as much as digits as its factorization.

11943849587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 59.

The spelling of 11943849587 in words is "eleven billion, nine hundred forty-three million, eight hundred forty-nine thousand, five hundred eighty-seven".