727264428804 has 81 divisors (see below), whose sum is σ = 1860415655007. Its totient is φ = 239547547008.

The previous prime is 727264428769. The next prime is 727264428881. The reversal of 727264428804 is 408824462727.

The square root of 727264428804 is 852798.

It is a perfect power (a square), and thus also a powerful number.

727264428804 is a `hidden beast` number, since 72 + 72 + 6 + 4 + 428 + 80 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 268458696900 + 458805731904 = 518130^2 + 677352^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 455393334 + ... + 455394930.

Almost surely, 2^727264428804 is an apocalyptic number.

727264428804 is the 852798-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 727264428804

727264428804 is an abundant number, since it is smaller than the sum of its proper divisors (1133151226203).

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

727264428804 is an equidigital number, since it uses as much as digits as its factorization.

727264428804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3382 (or 1691 counting only the distinct ones).

The product of its (nonzero) digits is 9633792, while the sum is 54.

The spelling of 727264428804 in words is "seven hundred twenty-seven billion, two hundred sixty-four million, four hundred twenty-eight thousand, eight hundred four".