123144386488 has 32 divisors (see below), whose sum is σ = 234700113600. Its totient is φ = 60564860928.

The previous prime is 123144386479. The next prime is 123144386527. The reversal of 123144386488 is 884683441321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310656 + ... + 585487.

It is an arithmetic number, because the mean of its divisors is an integer number (7334378550).

Almost surely, 2^123144386488 is an apocalyptic number.

It is an amenable number.

123144386488 is a deficient number, since it is larger than the sum of its proper divisors (111555727112).

123144386488 is a wasteful number, since it uses less digits than its factorization.

123144386488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896431 (or 896427 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 52.

The spelling of 123144386488 in words is "one hundred twenty-three billion, one hundred forty-four million, three hundred eighty-six thousand, four hundred eighty-eight".