1128776628722 has 8 divisors (see below), whose sum is σ = 1697304711900. Its totient is φ = 563008391424.

The previous prime is 1128776628719. The next prime is 1128776628743. The reversal of 1128776628722 is 2278266778211.

It is a happy number.

It is a Cunningham number, because it is equal to 1062439²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 1128776628721 + 1 = 1062439^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 689960447 + ... + 689962082.

Almost surely, 2^{1128776628722} is an apocalyptic number.

1128776628722 is a deficient number, since it is larger than the sum of its proper divisors (568528083178).

1128776628722 is a wasteful number, since it uses less digits than its factorization.

1128776628722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1379922940.

The product of its digits is 12644352, while the sum is 59.

The spelling of 1128776628722 in words is "one trillion, one hundred twenty-eight billion, seven hundred seventy-six million, six hundred twenty-eight thousand, seven hundred twenty-two".