28422420285 has 16 divisors (see below), whose sum is σ = 51972425856. Its totient is φ = 12993106368.

The previous prime is 28422420281. The next prime is 28422420289. The reversal of 28422420285 is 58202422482.

It is an interprime number because it is at equal distance from previous prime (28422420281) and next prime (28422420289).

It is not a de Polignac number, because 28422420285 - 2² = 28422420281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28422420281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135344754 + ... + 135344963.

It is an arithmetic number, because the mean of its divisors is an integer number (3248276616).

Almost surely, 2^28422420285 is an apocalyptic number.

It is an amenable number.

28422420285 is a deficient number, since it is larger than the sum of its proper divisors (23550005571).

28422420285 is a wasteful number, since it uses less digits than its factorization.

28422420285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270689732.

The product of its (nonzero) digits is 163840, while the sum is 39.

The spelling of 28422420285 in words is "twenty-eight billion, four hundred twenty-two million, four hundred twenty thousand, two hundred eighty-five".