28343337243 has 32 divisors (see below), whose sum is σ = 41586918912. Its totient is φ = 17064902400.

The previous prime is 28343337223. The next prime is 28343337247. The reversal of 28343337243 is 34273334382.

It is not a de Polignac number, because 28343337243 - 2²¹ = 28341240091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28343337195 and 28343337204.

It is not an unprimeable number, because it can be changed into a prime (28343337247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 323671 + ... + 401807.

It is an arithmetic number, because the mean of its divisors is an integer number (1299591216).

Almost surely, 2^28343337243 is an apocalyptic number.

28343337243 is a deficient number, since it is larger than the sum of its proper divisors (13243581669).

28343337243 is a wasteful number, since it uses less digits than its factorization.

28343337243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78355.

The product of its digits is 870912, while the sum is 42.

The spelling of 28343337243 in words is "twenty-eight billion, three hundred forty-three million, three hundred thirty-seven thousand, two hundred forty-three".