728658369007 has 4 divisors (see below), whose sum is σ = 728715769936. Its totient is φ = 728600968080.

The previous prime is 728658369001. The next prime is 728658369031. The reversal of 728658369007 is 700963856827.

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 728658369007 - 2³⁹ = 178902555119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728658369001) 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, 28681419 + ... + 28706812.

It is an arithmetic number, because the mean of its divisors is an integer number (182178942484).

Almost surely, 2^728658369007 is an apocalyptic number.

728658369007 is a deficient number, since it is larger than the sum of its proper divisors (57400929).

728658369007 is a wasteful number, since it uses less digits than its factorization.

728658369007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57400928.

The product of its (nonzero) digits is 30481920, while the sum is 61.

The spelling of 728658369007 in words is "seven hundred twenty-eight billion, six hundred fifty-eight million, three hundred sixty-nine thousand, seven".