28529912464 has 15 divisors (see below), whose sum is σ = 55278014467. Its totient is φ = 14264618416.

The previous prime is 28529912461. The next prime is 28529912503. The reversal of 28529912464 is 46421992582.

The square root of 28529912464 is 168908.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28529912461) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 654519 + ... + 696745.

Almost surely, 2^28529912464 is an apocalyptic number.

28529912464 is the 168908-th square number.

It is an amenable number.

28529912464 is a deficient number, since it is larger than the sum of its proper divisors (26748102003).

28529912464 is an frugal number, since it uses more digits than its factorization.

28529912464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84462 (or 42229 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 52.

The spelling of 28529912464 in words is "twenty-eight billion, five hundred twenty-nine million, nine hundred twelve thousand, four hundred sixty-four".