727399492488 has 40 divisors (see below), whose sum is σ = 2037392098830. Its totient is φ = 242466497280.

The previous prime is 727399492459. The next prime is 727399492499. The reversal of 727399492488 is 884294993727.

727399492488 is a `hidden beast` number, since 7 + 2 + 7 + 3 + 99 + 492 + 48 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 727305363684 + 94128804 = 852822^2 + 9702^2 .

It is a super-2 number, since 2×727399492488² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

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 in 9 ways as a sum of consecutive naturals, for example, 561264393 + ... + 561265688.

Almost surely, 2^727399492488 is an apocalyptic number.

It is an amenable number.

727399492488 is an abundant number, since it is smaller than the sum of its proper divisors (1309992606342).

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

727399492488 is a wasteful number, since it uses less digits than its factorization.

727399492488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122530099 (or 1122530086 counting only the distinct ones).

The product of its digits is 438939648, while the sum is 72.

The spelling of 727399492488 in words is "seven hundred twenty-seven billion, three hundred ninety-nine million, four hundred ninety-two thousand, four hundred eighty-eight".