854315815783 has 2 divisors, whose sum is σ = 854315815784. Its totient is φ = 854315815782.

The previous prime is 854315815777. The next prime is 854315815819. The reversal of 854315815783 is 387518513458.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 854315815783 - 2³³ = 845725881191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854315815183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427157907891 + 427157907892.

It is an arithmetic number, because the mean of its divisors is an integer number (427157907892).

Almost surely, 2^854315815783 is an apocalyptic number.

854315815783 is a deficient number, since it is larger than the sum of its proper divisors (1).

854315815783 is an equidigital number, since it uses as much as digits as its factorization.

854315815783 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128000, while the sum is 58.

The spelling of 854315815783 in words is "eight hundred fifty-four billion, three hundred fifteen million, eight hundred fifteen thousand, seven hundred eighty-three".