728526454272 has 120 divisors (see below), whose sum is σ = 2103045557184. Its totient is φ = 242787999744.

The previous prime is 728526454241. The next prime is 728526454273. The reversal of 728526454272 is 272454625827.

728526454272 is a `hidden beast` number, since 7 + 2 + 8 + 5 + 26 + 4 + 542 + 72 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728526454273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24282993 + ... + 24312975.

Almost surely, 2^728526454272 is an apocalyptic number.

728526454272 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 728526454272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1051522778592).

728526454272 is an abundant number, since it is smaller than the sum of its proper divisors (1374519102912).

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

728526454272 is a wasteful number, since it uses less digits than its factorization.

728526454272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35280 (or 35261 counting only the distinct ones).

The product of its digits is 15052800, while the sum is 54.

The spelling of 728526454272 in words is "seven hundred twenty-eight billion, five hundred twenty-six million, four hundred fifty-four thousand, two hundred seventy-two".