28253775534 has 16 divisors (see below), whose sum is σ = 58330375680. Its totient is φ = 9114121080.

The previous prime is 28253775499. The next prime is 28253775547. The reversal of 28253775534 is 43557735282.

It is a super-3 number, since 3×28253775534³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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, 75950824 + ... + 75951195.

It is an arithmetic number, because the mean of its divisors is an integer number (3645648480).

Almost surely, 2^28253775534 is an apocalyptic number.

28253775534 is an abundant number, since it is smaller than the sum of its proper divisors (30076600146).

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

28253775534 is a wasteful number, since it uses less digits than its factorization.

28253775534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151902055.

The product of its digits is 7056000, while the sum is 51.

The spelling of 28253775534 in words is "twenty-eight billion, two hundred fifty-three million, seven hundred seventy-five thousand, five hundred thirty-four".