28866550349 has 16 divisors (see below), whose sum is σ = 35532053760. Its totient is φ = 22836902400.

The previous prime is 28866550331. The next prime is 28866550351. The reversal of 28866550349 is 94305566882.

It is not a de Polignac number, because 28866550349 - 2¹⁶ = 28866484813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28866550294 and 28866550303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28866550319) 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 15 ways as a sum of consecutive naturals, for example, 1559549 + ... + 1577949.

It is an arithmetic number, because the mean of its divisors is an integer number (2220753360).

Almost surely, 2^28866550349 is an apocalyptic number.

It is an amenable number.

28866550349 is a deficient number, since it is larger than the sum of its proper divisors (6665503411).

28866550349 is a wasteful number, since it uses less digits than its factorization.

28866550349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35660.

The product of its (nonzero) digits is 12441600, while the sum is 56.

The spelling of 28866550349 in words is "twenty-eight billion, eight hundred sixty-six million, five hundred fifty thousand, three hundred forty-nine".