428324504626 has 4 divisors (see below), whose sum is σ = 642486756942. Its totient is φ = 214162252312.

The previous prime is 428324504623. The next prime is 428324504633. The reversal of 428324504626 is 626405423824.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 423476864001 + 4847640625 = 650751^2 + 69625^2 .

It is not an unprimeable number, because it can be changed into a prime (428324504623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107081126155 + ... + 107081126158.

Almost surely, 2^428324504626 is an apocalyptic number.

428324504626 is a deficient number, since it is larger than the sum of its proper divisors (214162252316).

428324504626 is a wasteful number, since it uses less digits than its factorization.

428324504626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214162252315.

The product of its (nonzero) digits is 2211840, while the sum is 46.

The spelling of 428324504626 in words is "four hundred twenty-eight billion, three hundred twenty-four million, five hundred four thousand, six hundred twenty-six".