728282162661 has 16 divisors (see below), whose sum is σ = 991732460544. Its totient is φ = 475177259504.

The previous prime is 728282162651. The next prime is 728282162749. The reversal of 728282162661 is 166261282827.

It is a cyclic number.

It is not a de Polignac number, because 728282162661 - 2¹⁰ = 728282161637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728282162651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7254370 + ... + 7354076.

It is an arithmetic number, because the mean of its divisors is an integer number (61983278784).

Almost surely, 2^728282162661 is an apocalyptic number.

It is an amenable number.

728282162661 is a deficient number, since it is larger than the sum of its proper divisors (263450297883).

728282162661 is a wasteful number, since it uses less digits than its factorization.

728282162661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151560.

The product of its digits is 1548288, while the sum is 51.

The spelling of 728282162661 in words is "seven hundred twenty-eight billion, two hundred eighty-two million, one hundred sixty-two thousand, six hundred sixty-one".