123606728744 has 16 divisors (see below), whose sum is σ = 234696321600. Its totient is φ = 61021042992.

The previous prime is 123606728743. The next prime is 123606728747. The reversal of 123606728744 is 447827606321.

It is a junction number, because it is equal to n+sod(n) for n = 123606728692 and 123606728701.

It is not an unprimeable number, because it can be changed into a prime (123606728743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97789502 + ... + 97790765.

It is an arithmetic number, because the mean of its divisors is an integer number (14668520100).

Almost surely, 2^123606728744 is an apocalyptic number.

It is an amenable number.

123606728744 is a deficient number, since it is larger than the sum of its proper divisors (111089592856).

123606728744 is a wasteful number, since it uses less digits than its factorization.

123606728744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195580352 (or 195580348 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 123606728744 in words is "one hundred twenty-three billion, six hundred six million, seven hundred twenty-eight thousand, seven hundred forty-four".