854866545499 has 2 divisors, whose sum is σ = 854866545500. Its totient is φ = 854866545498.

The previous prime is 854866545437. The next prime is 854866545553. The reversal of 854866545499 is 994545668458.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 854866545499 - 2²⁹ = 854329674587 is a prime.

It is a super-2 number, since 2×854866545499² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (854863545499) 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, 427433272749 + 427433272750.

It is an arithmetic number, because the mean of its divisors is an integer number (427433272750).

Almost surely, 2^854866545499 is an apocalyptic number.

854866545499 is a deficient number, since it is larger than the sum of its proper divisors (1).

854866545499 is an equidigital number, since it uses as much as digits as its factorization.

854866545499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992000, while the sum is 73.

The spelling of 854866545499 in words is "eight hundred fifty-four billion, eight hundred sixty-six million, five hundred forty-five thousand, four hundred ninety-nine".