428106069626 has 8 divisors (see below), whose sum is σ = 679933169460. Its totient is φ = 201461679808.

The previous prime is 428106069607. The next prime is 428106069631. The reversal of 428106069626 is 626960601824.

It can be written as a sum of positive squares in 2 ways, for example, as 426345008401 + 1761061225 = 652951^2 + 41965^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6295677461 + ... + 6295677528.

Almost surely, 2^428106069626 is an apocalyptic number.

428106069626 is a deficient number, since it is larger than the sum of its proper divisors (251827099834).

428106069626 is a wasteful number, since it uses less digits than its factorization.

428106069626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12591355008.

The product of its (nonzero) digits is 1492992, while the sum is 50.

The spelling of 428106069626 in words is "four hundred twenty-eight billion, one hundred six million, sixty-nine thousand, six hundred twenty-six".