728361257577 has 8 divisors (see below), whose sum is σ = 971561431680. Its totient is φ = 485367627600.

The previous prime is 728361257563. The next prime is 728361257593. The reversal of 728361257577 is 775752163827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 728361257577 - 2¹² = 728361253481 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 728361257577.

It is not an unprimeable number, because it can be changed into a prime (728361257597) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51627802 + ... + 51641907.

It is an arithmetic number, because the mean of its divisors is an integer number (121445178960).

Almost surely, 2^728361257577 is an apocalyptic number.

It is an amenable number.

728361257577 is a deficient number, since it is larger than the sum of its proper divisors (243200174103).

728361257577 is a wasteful number, since it uses less digits than its factorization.

728361257577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103272063.

The product of its digits is 34574400, while the sum is 60.

The spelling of 728361257577 in words is "seven hundred twenty-eight billion, three hundred sixty-one million, two hundred fifty-seven thousand, five hundred seventy-seven".