1123445677779 has 32 divisors (see below), whose sum is σ = 1695174915840. Its totient is φ = 735177871296.

The previous prime is 1123445677771. The next prime is 1123445677801. The reversal of 1123445677779 is 9777765443211.

1123445677779 is a `hidden beast` number, since 1 + 1 + 23 + 44 + 567 + 7 + 7 + 7 + 9 = 666.

It is not a de Polignac number, because 1123445677779 - 2³ = 1123445677771 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1123445677771) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 585282 + ... + 1609175.

It is an arithmetic number, because the mean of its divisors is an integer number (52974216120).

Almost surely, 2^{1123445677779} is an apocalyptic number.

1123445677779 is a deficient number, since it is larger than the sum of its proper divisors (571729238061).

1123445677779 is a wasteful number, since it uses less digits than its factorization.

1123445677779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194816 (or 2194810 counting only the distinct ones).

The product of its digits is 62233920, while the sum is 63.

The spelling of 1123445677779 in words is "one trillion, one hundred twenty-three billion, four hundred forty-five million, six hundred seventy-seven thousand, seven hundred seventy-nine".