428106082657 has 8 divisors (see below), whose sum is σ = 467118902592. Its totient is φ = 389108943600.

The previous prime is 428106082639. The next prime is 428106082697. The reversal of 428106082657 is 756280601824.

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

It is a cyclic number.

It is not a de Polignac number, because 428106082657 - 2¹⁹ = 428105558369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 428106082657.

It is not an unprimeable number, because it can be changed into a prime (428106082627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3863094 + ... + 3972367.

It is an arithmetic number, because the mean of its divisors is an integer number (58389862824).

Almost surely, 2^428106082657 is an apocalyptic number.

It is an amenable number.

428106082657 is a deficient number, since it is larger than the sum of its proper divisors (39012819935).

428106082657 is a wasteful number, since it uses less digits than its factorization.

428106082657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7840439.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 428106082657 in words is "four hundred twenty-eight billion, one hundred six million, eighty-two thousand, six hundred fifty-seven".