123344556788 has 12 divisors (see below), whose sum is σ = 228550208292. Its totient is φ = 58044497280.

The previous prime is 123344556781. The next prime is 123344556821. The reversal of 123344556788 is 887655443321.

It can be written as a sum of positive squares in 2 ways, for example, as 91664828644 + 31679728144 = 302762^2 + 177988^2 .

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123344556781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 906945203 + ... + 906945338.

It is an arithmetic number, because the mean of its divisors is an integer number (19045850691).

Almost surely, 2^123344556788 is an apocalyptic number.

It is an amenable number.

123344556788 is a deficient number, since it is larger than the sum of its proper divisors (105205651504).

123344556788 is a wasteful number, since it uses less digits than its factorization.

123344556788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813890562 (or 1813890560 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 56.

The spelling of 123344556788 in words is "one hundred twenty-three billion, three hundred forty-four million, five hundred fifty-six thousand, seven hundred eighty-eight".