1228334556729 has 32 divisors (see below), whose sum is σ = 1874157730560. Its totient is φ = 701002368000.

The previous prime is 1228334556727. The next prime is 1228334556737. The reversal of 1228334556729 is 9276554338221.

It is not a de Polignac number, because 1228334556729 - 2¹ = 1228334556727 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1228334556727) 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, 57385429 + ... + 57406829.

It is an arithmetic number, because the mean of its divisors is an integer number (58567429080).

Almost surely, 2^{1228334556729} is an apocalyptic number.

It is an amenable number.

1228334556729 is a deficient number, since it is larger than the sum of its proper divisors (645823173831).

1228334556729 is a wasteful number, since it uses less digits than its factorization.

1228334556729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24801.

The product of its digits is 21772800, while the sum is 57.

The spelling of 1228334556729 in words is "one trillion, two hundred twenty-eight billion, three hundred thirty-four million, five hundred fifty-six thousand, seven hundred twenty-nine".