42928409682 has 24 divisors (see below), whose sum is σ = 94766491404. Its totient is φ = 14039479584.

The previous prime is 42928409627. The next prime is 42928409683. The reversal of 42928409682 is 28690482924.

It can be written as a sum of positive squares in 2 ways, for example, as 42270948801 + 657460881 = 205599^2 + 25641^2 .

It is a super-2 number, since 2×42928409682² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42928409683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22498213 + ... + 22500120.

Almost surely, 2^42928409682 is an apocalyptic number.

42928409682 is an abundant number, since it is smaller than the sum of its proper divisors (51838081722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42928409682 is a wasteful number, since it uses less digits than its factorization.

42928409682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44998394 (or 44998391 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 42928409682 in words is "forty-two billion, nine hundred twenty-eight million, four hundred nine thousand, six hundred eighty-two".