28072529514 has 24 divisors (see below), whose sum is σ = 62117939520. Its totient is φ = 9158413608.

The previous prime is 28072529491. The next prime is 28072529521. The reversal of 28072529514 is 41592527082.

28072529514 is a `hidden beast` number, since 2 + 8 + 0 + 72 + 529 + 51 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 28072529514.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16590484 + ... + 16592175.

It is an arithmetic number, because the mean of its divisors is an integer number (2588247480).

Almost surely, 2^28072529514 is an apocalyptic number.

28072529514 is an abundant number, since it is smaller than the sum of its proper divisors (34045410006).

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

28072529514 is a wasteful number, since it uses less digits than its factorization.

28072529514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33182714 (or 33182711 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 28072529514 in words is "twenty-eight billion, seventy-two million, five hundred twenty-nine thousand, five hundred fourteen".