28057620485 has 8 divisors (see below), whose sum is σ = 34171669536. Its totient is φ = 22111079760.

The previous prime is 28057620467. The next prime is 28057620497. The reversal of 28057620485 is 58402675082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28057620485 - 2²⁴ = 28040843269 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41876711 + ... + 41877380.

It is an arithmetic number, because the mean of its divisors is an integer number (4271458692).

Almost surely, 2^28057620485 is an apocalyptic number.

It is an amenable number.

28057620485 is a deficient number, since it is larger than the sum of its proper divisors (6114049051).

28057620485 is an equidigital number, since it uses as much as digits as its factorization.

28057620485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83754163.

The product of its (nonzero) digits is 1075200, while the sum is 47.

The spelling of 28057620485 in words is "twenty-eight billion, fifty-seven million, six hundred twenty thousand, four hundred eighty-five".