728814052134 has 96 divisors (see below), whose sum is σ = 1944783820800. Its totient is φ = 201515383440.

The previous prime is 728814052133. The next prime is 728814052139. The reversal of 728814052134 is 431250418827.

728814052134 is a `hidden beast` number, since 7 + 2 + 8 + 81 + 40 + 521 + 3 + 4 = 666.

728814052134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 728814052134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728814052133) 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, 4360554 + ... + 4524605.

It is an arithmetic number, because the mean of its divisors is an integer number (20258164800).

Almost surely, 2^728814052134 is an apocalyptic number.

728814052134 is an abundant number, since it is smaller than the sum of its proper divisors (1215969768666).

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

728814052134 is a wasteful number, since it uses less digits than its factorization.

728814052134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8885215 (or 8885202 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 728814052134 in words is "seven hundred twenty-eight billion, eight hundred fourteen million, fifty-two thousand, one hundred thirty-four".