728539943394 has 16 divisors (see below), whose sum is σ = 1457096691168. Its totient is φ = 242843847072.

The previous prime is 728539943333. The next prime is 728539943401. The reversal of 728539943394 is 493349935827.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96547 + ... + 1210950.

It is an arithmetic number, because the mean of its divisors is an integer number (91068543198).

Almost surely, 2^728539943394 is an apocalyptic number.

728539943394 is an abundant number, since it is smaller than the sum of its proper divisors (728556747774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

728539943394 is a wasteful number, since it uses less digits than its factorization.

728539943394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400369.

The product of its digits is 176359680, while the sum is 66.

The spelling of 728539943394 in words is "seven hundred twenty-eight billion, five hundred thirty-nine million, nine hundred forty-three thousand, three hundred ninety-four".