11846867917 has 2 divisors, whose sum is σ = 11846867918. Its totient is φ = 11846867916.

The previous prime is 11846867867. The next prime is 11846867933. The reversal of 11846867917 is 71976864811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11478765321 + 368102596 = 107139^2 + 19186^2 .

It is a cyclic number.

It is not a de Polignac number, because 11846867917 - 2¹⁹ = 11846343629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11846867947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5923433958 + 5923433959.

It is an arithmetic number, because the mean of its divisors is an integer number (5923433959).

Almost surely, 2^11846867917 is an apocalyptic number.

It is an amenable number.

11846867917 is a deficient number, since it is larger than the sum of its proper divisors (1).

11846867917 is an equidigital number, since it uses as much as digits as its factorization.

11846867917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 58.

The spelling of 11846867917 in words is "eleven billion, eight hundred forty-six million, eight hundred sixty-seven thousand, nine hundred seventeen".