28143940335 has 32 divisors (see below), whose sum is σ = 51628741632. Its totient is φ = 12824417280.

The previous prime is 28143940303. The next prime is 28143940339. The reversal of 28143940335 is 53304934182.

It is not a de Polignac number, because 28143940335 - 2⁵ = 28143940303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28143940339) 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 31 ways as a sum of consecutive naturals, for example, 398274 + ... + 463583.

It is an arithmetic number, because the mean of its divisors is an integer number (1613398176).

Almost surely, 2^28143940335 is an apocalyptic number.

28143940335 is a deficient number, since it is larger than the sum of its proper divisors (23484801297).

28143940335 is a wasteful number, since it uses less digits than its factorization.

28143940335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862183.

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 28143940335 in words is "twenty-eight billion, one hundred forty-three million, nine hundred forty thousand, three hundred thirty-five".