727646515556 has 6 divisors (see below), whose sum is σ = 1273381402230. Its totient is φ = 363823257776.

The previous prime is 727646515511. The next prime is 727646515597. The reversal of 727646515556 is 655515646727.

It can be written as a sum of positive squares in only one way, i.e., 510630293056 + 217016222500 = 714584^2 + 465850^2 .

It is a junction number, because it is equal to n+sod(n) for n = 727646515495 and 727646515504.

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, 90955814441 + ... + 90955814448.

It is an arithmetic number, because the mean of its divisors is an integer number (212230233705).

Almost surely, 2^727646515556 is an apocalyptic number.

It is an amenable number.

727646515556 is a deficient number, since it is larger than the sum of its proper divisors (545734886674).

727646515556 is a wasteful number, since it uses less digits than its factorization.

727646515556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181911628893 (or 181911628891 counting only the distinct ones).

The product of its digits is 52920000, while the sum is 59.

The spelling of 727646515556 in words is "seven hundred twenty-seven billion, six hundred forty-six million, five hundred fifteen thousand, five hundred fifty-six".