428106082658 has 4 divisors (see below), whose sum is σ = 642159123990. Its totient is φ = 214053041328.

The previous prime is 428106082639. The next prime is 428106082697. The reversal of 428106082658 is 856280601824.

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., 422959024609 + 5147058049 = 650353^2 + 71743^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 107026520663 + ... + 107026520666.

Almost surely, 2^428106082658 is an apocalyptic number.

428106082658 is a deficient number, since it is larger than the sum of its proper divisors (214053041332).

428106082658 is a wasteful number, since it uses less digits than its factorization.

428106082658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214053041331.

The product of its (nonzero) digits is 1474560, while the sum is 50.

The spelling of 428106082658 in words is "four hundred twenty-eight billion, one hundred six million, eighty-two thousand, six hundred fifty-eight".