674809632728 has 32 divisors (see below), whose sum is σ = 1577477064960. Its totient is φ = 262912843680.

The previous prime is 674809632719. The next prime is 674809632751. The reversal of 674809632728 is 827236908476.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 547734476 + ... + 547735707.

It is an arithmetic number, because the mean of its divisors is an integer number (49296158280).

Almost surely, 2^674809632728 is an apocalyptic number.

It is an amenable number.

674809632728 is an abundant number, since it is smaller than the sum of its proper divisors (902667432232).

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

674809632728 is a wasteful number, since it uses less digits than its factorization.

674809632728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095470207 (or 1095470203 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 62.

The spelling of 674809632728 in words is "six hundred seventy-four billion, eight hundred nine million, six hundred thirty-two thousand, seven hundred twenty-eight".