728653267476 has 18 divisors (see below), whose sum is σ = 1841873537322. Its totient is φ = 242884422480.

The previous prime is 728653267471. The next prime is 728653267499. The reversal of 728653267476 is 674762356827.

728653267476 is a `hidden beast` number, since 7 + 28 + 6 + 532 + 6 + 7 + 4 + 76 = 666.

It can be written as a sum of positive squares in only one way, i.e., 540710208900 + 187943058576 = 735330^2 + 433524^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728653267471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10120184235 + ... + 10120184306.

It is an arithmetic number, because the mean of its divisors is an integer number (102326307629).

Almost surely, 2^728653267476 is an apocalyptic number.

It is an amenable number.

728653267476 is an abundant number, since it is smaller than the sum of its proper divisors (1113220269846).

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

728653267476 is a wasteful number, since it uses less digits than its factorization.

728653267476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20240368551 (or 20240368546 counting only the distinct ones).

The product of its digits is 142248960, while the sum is 63.

The spelling of 728653267476 in words is "seven hundred twenty-eight billion, six hundred fifty-three million, two hundred sixty-seven thousand, four hundred seventy-six".