428060670681 has 16 divisors (see below), whose sum is σ = 653202953600. Its totient is φ = 244261087488.

The previous prime is 428060670637. The next prime is 428060670727. The reversal of 428060670681 is 186076060824.

It is not a de Polignac number, because 428060670681 - 2¹⁵ = 428060637913 is a prime.

It is a super-2 number, since 2×428060670681² (a number of 24 digits) contains 22 as substring.

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 428060670681.

It is not an unprimeable number, because it can be changed into a prime (428060670281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14360176 + ... + 14389953.

It is an arithmetic number, because the mean of its divisors is an integer number (40825184600).

Almost surely, 2^428060670681 is an apocalyptic number.

It is an amenable number.

428060670681 is a deficient number, since it is larger than the sum of its proper divisors (225142282919).

428060670681 is a wasteful number, since it uses less digits than its factorization.

428060670681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28750848.

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 428060670681 in words is "four hundred twenty-eight billion, sixty million, six hundred seventy thousand, six hundred eighty-one".