727973839386728 has 32 divisors (see below), whose sum is σ = 1489091473836000. Its totient is φ = 330885183034560.

The previous prime is 727973839386727. The next prime is 727973839386743. The reversal of 727973839386728 is 827683938379727.

It is not an unprimeable number, because it can be changed into a prime (727973839386727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147771383 + ... + 152618246.

It is an arithmetic number, because the mean of its divisors is an integer number (46534108557375).

Almost surely, 2^{727973839386728} is an apocalyptic number.

It is an amenable number.

727973839386728 is an abundant number, since it is smaller than the sum of its proper divisors (761117634449272).

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

727973839386728 is a wasteful number, since it uses less digits than its factorization.

727973839386728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300417185 (or 300417181 counting only the distinct ones).

The product of its digits is 64524128256, while the sum is 89.

The spelling of 727973839386728 in words is "seven hundred twenty-seven trillion, nine hundred seventy-three billion, eight hundred thirty-nine million, three hundred eighty-six thousand, seven hundred twenty-eight".