428910234227 has 4 divisors (see below), whose sum is σ = 429039078120. Its totient is φ = 428781390336.

The previous prime is 428910234223. The next prime is 428910234239. The reversal of 428910234227 is 722432019824.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 428910234227 - 2² = 428910234223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428910234223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64416953 + ... + 64423610.

It is an arithmetic number, because the mean of its divisors is an integer number (107259769530).

Almost surely, 2^428910234227 is an apocalyptic number.

428910234227 is a deficient number, since it is larger than the sum of its proper divisors (128843893).

428910234227 is a wasteful number, since it uses less digits than its factorization.

428910234227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128843892.

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 428910234227 in words is "four hundred twenty-eight billion, nine hundred ten million, two hundred thirty-four thousand, two hundred twenty-seven".