11830780067 has 4 divisors (see below), whose sum is σ = 11835566520. Its totient is φ = 11825993616.

The previous prime is 11830780033. The next prime is 11830780079. The reversal of 11830780067 is 76008703811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76008703811 = 53 ⋅1434126487.

It is a cyclic number.

It is not a de Polignac number, because 11830780067 - 2¹⁶ = 11830714531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11830780967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2389517 + ... + 2394462.

It is an arithmetic number, because the mean of its divisors is an integer number (2958891630).

Almost surely, 2^11830780067 is an apocalyptic number.

11830780067 is a deficient number, since it is larger than the sum of its proper divisors (4786453).

11830780067 is an equidigital number, since it uses as much as digits as its factorization.

11830780067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4786452.

The product of its (nonzero) digits is 56448, while the sum is 41.

The spelling of 11830780067 in words is "eleven billion, eight hundred thirty million, seven hundred eighty thousand, sixty-seven".