854240720239 has 2 divisors, whose sum is σ = 854240720240. Its totient is φ = 854240720238.

The previous prime is 854240720237. The next prime is 854240720297. The reversal of 854240720239 is 932027042458.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 854240720239 - 2¹ = 854240720237 is a prime.

It is a super-2 number, since 2×854240720239² (a number of 25 digits) contains 22 as substring.

Together with 854240720237, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854240720237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427120360119 + 427120360120.

It is an arithmetic number, because the mean of its divisors is an integer number (427120360120).

Almost surely, 2^854240720239 is an apocalyptic number.

854240720239 is a deficient number, since it is larger than the sum of its proper divisors (1).

854240720239 is an equidigital number, since it uses as much as digits as its factorization.

854240720239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 854240720239 in words is "eight hundred fifty-four billion, two hundred forty million, seven hundred twenty thousand, two hundred thirty-nine".