728276590069 has 4 divisors (see below), whose sum is σ = 832316102944. Its totient is φ = 624237077196.

The previous prime is 728276590049. The next prime is 728276590079. The reversal of 728276590069 is 960095672827.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 728276590069 - 2¹⁷ = 728276458997 is a prime.

It is a super-2 number, since 2×728276590069² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 728276589989 and 728276590016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728276590049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52019756427 + ... + 52019756440.

It is an arithmetic number, because the mean of its divisors is an integer number (208079025736).

Almost surely, 2^728276590069 is an apocalyptic number.

It is an amenable number.

728276590069 is a deficient number, since it is larger than the sum of its proper divisors (104039512875).

728276590069 is a wasteful number, since it uses less digits than its factorization.

728276590069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104039512874.

The product of its (nonzero) digits is 22861440, while the sum is 61.

The spelling of 728276590069 in words is "seven hundred twenty-eight billion, two hundred seventy-six million, five hundred ninety thousand, sixty-nine".