854866487434 has 16 divisors (see below), whose sum is σ = 1287728969472. Its totient is φ = 425624896048.

The previous prime is 854866487417. The next prime is 854866487471. The reversal of 854866487434 is 434784668458.

It is a super-2 number, since 2×854866487434² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 854866487434.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 878847 + ... + 1575469.

It is an arithmetic number, because the mean of its divisors is an integer number (80483060592).

Almost surely, 2^854866487434 is an apocalyptic number.

854866487434 is a deficient number, since it is larger than the sum of its proper divisors (432862482038).

854866487434 is a wasteful number, since it uses less digits than its factorization.

854866487434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699221.

The product of its digits is 495452160, while the sum is 67.

The spelling of 854866487434 in words is "eight hundred fifty-four billion, eight hundred sixty-six million, four hundred eighty-seven thousand, four hundred thirty-four".