728051605870 has 32 divisors (see below), whose sum is σ = 1339414880256. Its totient is φ = 284858128800.

The previous prime is 728051605859. The next prime is 728051605877. The reversal of 728051605870 is 78506150827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728051605877) 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, 3946936 + ... + 4127275.

It is an arithmetic number, because the mean of its divisors is an integer number (41856715008).

Almost surely, 2^728051605870 is an apocalyptic number.

728051605870 is a deficient number, since it is larger than the sum of its proper divisors (611363274386).

728051605870 is a wasteful number, since it uses less digits than its factorization.

728051605870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8074416.

The product of its (nonzero) digits is 940800, while the sum is 49.

The spelling of 728051605870 in words is "seven hundred twenty-eight billion, fifty-one million, six hundred five thousand, eight hundred seventy".