11854564567 has 2 divisors, whose sum is σ = 11854564568. Its totient is φ = 11854564566.

The previous prime is 11854564549. The next prime is 11854564577. The reversal of 11854564567 is 76546545811.

11854564567 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11854564567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11854564577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5927282283 + 5927282284.

It is an arithmetic number, because the mean of its divisors is an integer number (5927282284).

Almost surely, 2^11854564567 is an apocalyptic number.

11854564567 is a deficient number, since it is larger than the sum of its proper divisors (1).

11854564567 is an equidigital number, since it uses as much as digits as its factorization.

11854564567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032000, while the sum is 52.

The spelling of 11854564567 in words is "eleven billion, eight hundred fifty-four million, five hundred sixty-four thousand, five hundred sixty-seven".