728570406534 has 16 divisors (see below), whose sum is σ = 1457865422400. Its totient is φ = 242736033960.

The previous prime is 728570406523. The next prime is 728570406539. The reversal of 728570406534 is 435604075827.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728570406539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30178984 + ... + 30203115.

It is an arithmetic number, because the mean of its divisors is an integer number (91116588900).

Almost surely, 2^728570406534 is an apocalyptic number.

728570406534 is an abundant number, since it is smaller than the sum of its proper divisors (729295015866).

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

728570406534 is a wasteful number, since it uses less digits than its factorization.

728570406534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60384115.

The product of its (nonzero) digits is 5644800, while the sum is 51.

The spelling of 728570406534 in words is "seven hundred twenty-eight billion, five hundred seventy million, four hundred six thousand, five hundred thirty-four".