28057743825 has 24 divisors (see below), whose sum is σ = 46400366496. Its totient is φ = 14960400000.

The previous prime is 28057743799. The next prime is 28057743839. The reversal of 28057743825 is 52834775082.

It is not a de Polignac number, because 28057743825 - 2¹⁴ = 28057727441 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 270550 + ... + 359600.

It is an arithmetic number, because the mean of its divisors is an integer number (1933348604).

Almost surely, 2^28057743825 is an apocalyptic number.

28057743825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28057743825 is a deficient number, since it is larger than the sum of its proper divisors (18342622671).

28057743825 is a wasteful number, since it uses less digits than its factorization.

28057743825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93265 (or 93260 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 51.

The spelling of 28057743825 in words is "twenty-eight billion, fifty-seven million, seven hundred forty-three thousand, eight hundred twenty-five".