28057568810425 has 48 divisors (see below), whose sum is σ = 43404279984000. Its totient is φ = 17479139212800.

The previous prime is 28057568810353. The next prime is 28057568810437. The reversal of 28057568810425 is 52401886575082.

It is not a de Polignac number, because 28057568810425 - 2⁹ = 28057568809913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1722940 + ... + 7686589.

It is an arithmetic number, because the mean of its divisors is an integer number (904255833000).

Almost surely, 2^{28057568810425} is an apocalyptic number.

28057568810425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28057568810425 is a deficient number, since it is larger than the sum of its proper divisors (15346711173575).

28057568810425 is a wasteful number, since it uses less digits than its factorization.

28057568810425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9411106 (or 9411101 counting only the distinct ones).

The product of its (nonzero) digits is 43008000, while the sum is 61.

The spelling of 28057568810425 in words is "twenty-eight trillion, fifty-seven billion, five hundred sixty-eight million, eight hundred ten thousand, four hundred twenty-five".