28783543726 has 16 divisors (see below), whose sum is σ = 51940229760. Its totient is φ = 11686551480.

The previous prime is 28783543721. The next prime is 28783543751. The reversal of 28783543726 is 62734538782.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28783543721) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 54104140 + ... + 54104671.

It is an arithmetic number, because the mean of its divisors is an integer number (3246264360).

Almost surely, 2^28783543726 is an apocalyptic number.

28783543726 is a deficient number, since it is larger than the sum of its proper divisors (23156686034).

28783543726 is a wasteful number, since it uses less digits than its factorization.

28783543726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108208839.

The product of its digits is 13547520, while the sum is 55.

The spelling of 28783543726 in words is "twenty-eight billion, seven hundred eighty-three million, five hundred forty-three thousand, seven hundred twenty-six".