28860145730 has 16 divisors (see below), whose sum is σ = 55944282744. Its totient is φ = 10656053760.

The previous prime is 28860145687. The next prime is 28860145747. The reversal of 28860145730 is 3754106882.

It can be written as a sum of positive squares in 4 ways, for example, as 22731291361 + 6128854369 = 150769^2 + 78287^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111000431 + ... + 111000690.

Almost surely, 2^28860145730 is an apocalyptic number.

28860145730 is a deficient number, since it is larger than the sum of its proper divisors (27084137014).

28860145730 is a wasteful number, since it uses less digits than its factorization.

28860145730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222001141.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 28860145730 in words is "twenty-eight billion, eight hundred sixty million, one hundred forty-five thousand, seven hundred thirty".