428235204966 has 16 divisors (see below), whose sum is σ = 860311087104. Its totient is φ = 142104955464.

The previous prime is 428235204949. The next prime is 428235204989. The reversal of 428235204966 is 669402532824.

It is a super-2 number, since 2×428235204966² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 160026766 + ... + 160029441.

It is an arithmetic number, because the mean of its divisors is an integer number (53769442944).

Almost surely, 2^428235204966 is an apocalyptic number.

428235204966 is an abundant number, since it is smaller than the sum of its proper divisors (432075882138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428235204966 is a wasteful number, since it uses less digits than its factorization.

428235204966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320056435.

The product of its (nonzero) digits is 4976640, while the sum is 51.

The spelling of 428235204966 in words is "four hundred twenty-eight billion, two hundred thirty-five million, two hundred four thousand, nine hundred sixty-six".