28365790863570 has 32 divisors (see below), whose sum is σ = 68086741060800. Its totient is φ = 7563228342720.

The previous prime is 28365790863521. The next prime is 28365790863577. The reversal of 28365790863570 is 7536809756382.

It is a junction number, because it is equal to n+sod(n) for n = 28365790863495 and 28365790863504.

It is not an unprimeable number, because it can be changed into a prime (28365790863577) 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, 61174821 + ... + 61636760.

It is an arithmetic number, because the mean of its divisors is an integer number (2127710658150).

Almost surely, 2^{28365790863570} is an apocalyptic number.

28365790863570 is an abundant number, since it is smaller than the sum of its proper divisors (39720950197230).

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

28365790863570 is a wasteful number, since it uses less digits than its factorization.

28365790863570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122819290.

The product of its (nonzero) digits is 457228800, while the sum is 69.

The spelling of 28365790863570 in words is "twenty-eight trillion, three hundred sixty-five billion, seven hundred ninety million, eight hundred sixty-three thousand, five hundred seventy".