28526534404 has 9 divisors (see below), whose sum is σ = 49922026357. Its totient is φ = 14263098304.

The previous prime is 28526534389. The next prime is 28526534419. The reversal of 28526534404 is 40443562582.

The square root of 28526534404 is 168898.

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

It is an interprime number because it is at equal distance from previous prime (28526534389) and next prime (28526534419).

It can be written as a sum of positive squares in only one way, i.e., 2152774404 + 26373760000 = 46398^2 + 162400^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 295572 + ... + 380020.

Almost surely, 2^28526534404 is an apocalyptic number.

28526534404 is the 168898-th square number.

It is an amenable number.

28526534404 is a deficient number, since it is larger than the sum of its proper divisors (21395491953).

28526534404 is an frugal number, since it uses more digits than its factorization.

28526534404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168902 (or 84451 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 43.

The spelling of 28526534404 in words is "twenty-eight billion, five hundred twenty-six million, five hundred thirty-four thousand, four hundred four".