728236254539 has 4 divisors (see below), whose sum is σ = 728616934056. Its totient is φ = 727855575024.

The previous prime is 728236254503. The next prime is 728236254569. The reversal of 728236254539 is 935452632827.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 728236254539 - 2²⁸ = 727967819083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728236254569) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 190336889 + ... + 190340714.

It is an arithmetic number, because the mean of its divisors is an integer number (182154233514).

Almost surely, 2^728236254539 is an apocalyptic number.

728236254539 is a deficient number, since it is larger than the sum of its proper divisors (380679517).

728236254539 is a wasteful number, since it uses less digits than its factorization.

728236254539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380679516.

The product of its digits is 21772800, while the sum is 56.

The spelling of 728236254539 in words is "seven hundred twenty-eight billion, two hundred thirty-six million, two hundred fifty-four thousand, five hundred thirty-nine".