28130780310 has 32 divisors (see below), whose sum is σ = 67595372640. Its totient is φ = 7492485888.

The previous prime is 28130780309. The next prime is 28130780329. The reversal of 28130780310 is 1308703182.

It is a super-2 number, since 2×28130780310² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 540687 + ... + 590426.

It is an arithmetic number, because the mean of its divisors is an integer number (2112355395).

Almost surely, 2^28130780310 is an apocalyptic number.

28130780310 is an abundant number, since it is smaller than the sum of its proper divisors (39464592330).

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

28130780310 is a wasteful number, since it uses less digits than its factorization.

28130780310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131952.

The product of its (nonzero) digits is 8064, while the sum is 33.

The spelling of 28130780310 in words is "twenty-eight billion, one hundred thirty million, seven hundred eighty thousand, three hundred ten".