728711572074 has 16 divisors (see below), whose sum is σ = 1458113564160. Its totient is φ = 242788787360.

The previous prime is 728711572073. The next prime is 728711572091. The reversal of 728711572074 is 470275117827.

It is a super-2 number, since 2×728711572074² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (728711572073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28753779 + ... + 28779110.

It is an arithmetic number, because the mean of its divisors is an integer number (91132097760).

Almost surely, 2^728711572074 is an apocalyptic number.

728711572074 is an abundant number, since it is smaller than the sum of its proper divisors (729401992086).

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

728711572074 is a wasteful number, since it uses less digits than its factorization.

728711572074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57535005.

The product of its (nonzero) digits is 1536640, while the sum is 51.

The spelling of 728711572074 in words is "seven hundred twenty-eight billion, seven hundred eleven million, five hundred seventy-two thousand, seventy-four".