434749218866 has 16 divisors (see below), whose sum is σ = 656223830808. Its totient is φ = 216009763200.

The previous prime is 434749218863. The next prime is 434749218877. The reversal of 434749218866 is 668812947434.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 385542888241 + 49206330625 = 620921^2 + 221825^2 .

It is a junction number, because it is equal to n+sod(n) for n = 434749218799 and 434749218808.

It is not an unprimeable number, because it can be changed into a prime (434749218863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23636 + ... + 932768.

Almost surely, 2^434749218866 is an apocalyptic number.

434749218866 is a deficient number, since it is larger than the sum of its proper divisors (221474611942).

434749218866 is a wasteful number, since it uses less digits than its factorization.

434749218866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910637.

The product of its digits is 55738368, while the sum is 62.

The spelling of 434749218866 in words is "four hundred thirty-four billion, seven hundred forty-nine million, two hundred eighteen thousand, eight hundred sixty-six".