28568154725 has 12 divisors (see below), whose sum is σ = 38644922400. Its totient is φ = 20776839600.

The previous prime is 28568154721. The next prime is 28568154751. The reversal of 28568154725 is 52745186582.

It is a happy number.

It is not a de Polignac number, because 28568154725 - 2² = 28568154721 is a prime.

It is a super-2 number, since 2×28568154725² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28568154721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51941825 + ... + 51942374.

It is an arithmetic number, because the mean of its divisors is an integer number (3220410200).

Almost surely, 2^28568154725 is an apocalyptic number.

28568154725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28568154725 is a deficient number, since it is larger than the sum of its proper divisors (10076767675).

28568154725 is a wasteful number, since it uses less digits than its factorization.

28568154725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103884220 (or 103884215 counting only the distinct ones).

The product of its digits is 5376000, while the sum is 53.

The spelling of 28568154725 in words is "twenty-eight billion, five hundred sixty-eight million, one hundred fifty-four thousand, seven hundred twenty-five".