28035256057806 has 128 divisors (see below), whose sum is σ = 57575204144640. Its totient is φ = 9098752684032.

The previous prime is 28035256057789. The next prime is 28035256057807. The reversal of 28035256057806 is 60875065253082.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28035256057807) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7391312646 + ... + 7391316438.

It is an arithmetic number, because the mean of its divisors is an integer number (449806282380).

Almost surely, 2^{28035256057806} is an apocalyptic number.

28035256057806 is an abundant number, since it is smaller than the sum of its proper divisors (29539948086834).

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

28035256057806 is a wasteful number, since it uses less digits than its factorization.

28035256057806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4738.

The product of its (nonzero) digits is 24192000, while the sum is 57.

The spelling of 28035256057806 in words is "twenty-eight trillion, thirty-five billion, two hundred fifty-six million, fifty-seven thousand, eight hundred six".