728773441452 has 144 divisors (see below), whose sum is σ = 2210096179200. Its totient is φ = 198088727040.

The previous prime is 728773441411. The next prime is 728773441457. The reversal of 728773441452 is 254144377827.

It is a happy number.

728773441452 is a `hidden beast` number, since 7 + 2 + 87 + 73 + 4 + 41 + 452 = 666.

728773441452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×728773441452² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (728773441457) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 329677 + ... + 1251492.

Almost surely, 2^728773441452 is an apocalyptic number.

It is an amenable number.

728773441452 is an abundant number, since it is smaller than the sum of its proper divisors (1481322737748).

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

728773441452 is a wasteful number, since it uses less digits than its factorization.

728773441452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581276 (or 1581271 counting only the distinct ones).

The product of its digits is 10536960, while the sum is 54.

The spelling of 728773441452 in words is "seven hundred twenty-eight billion, seven hundred seventy-three million, four hundred forty-one thousand, four hundred fifty-two".