28208387370 has 16 divisors (see below), whose sum is σ = 67700129760. Its totient is φ = 7522236624.

The previous prime is 28208387359. The next prime is 28208387371. The reversal of 28208387370 is 7378380282.

It is not an unprimeable number, because it can be changed into a prime (28208387371) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 470139760 + ... + 470139819.

It is an arithmetic number, because the mean of its divisors is an integer number (4231258110).

Almost surely, 2^28208387370 is an apocalyptic number.

28208387370 is an abundant number, since it is smaller than the sum of its proper divisors (39491742390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28208387370 is a wasteful number, since it uses less digits than its factorization.

28208387370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940279589.

The product of its (nonzero) digits is 903168, while the sum is 48.

The spelling of 28208387370 in words is "twenty-eight billion, two hundred eight million, three hundred eighty-seven thousand, three hundred seventy".