28265343130 has 32 divisors (see below), whose sum is σ = 51441097680. Its totient is φ = 11181096960.

The previous prime is 28265343109. The next prime is 28265343137. The reversal of 28265343130 is 3134356282.

It is a Cunningham number, because it is equal to 168123²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 359974729 + 27905368401 = 18973^2 + 167049^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28265343130.

It is not an unprimeable number, because it can be changed into a prime (28265343137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1356390 + ... + 1377070.

Almost surely, 2^28265343130 is an apocalyptic number.

28265343130 is a deficient number, since it is larger than the sum of its proper divisors (23175754550).

28265343130 is a wasteful number, since it uses less digits than its factorization.

28265343130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22194.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 28265343130 in words is "twenty-eight billion, two hundred sixty-five million, three hundred forty-three thousand, one hundred thirty".