123939239616 has 112 divisors (see below), whose sum is σ = 380200204800. Its totient is φ = 39516846336.

The previous prime is 123939239591. The next prime is 123939239617. The reversal of 123939239616 is 616932939321.

123939239616 is a `hidden beast` number, since 1 + 2 + 393 + 9 + 239 + 6 + 16 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (123939239617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1519476 + ... + 1598963.

Almost surely, 2^123939239616 is an apocalyptic number.

123939239616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123939239616 is an abundant number, since it is smaller than the sum of its proper divisors (256260965184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123939239616 is a wasteful number, since it uses less digits than its factorization.

123939239616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3118483 (or 3118467 counting only the distinct ones).

The product of its digits is 2834352, while the sum is 54.

The spelling of 123939239616 in words is "one hundred twenty-three billion, nine hundred thirty-nine million, two hundred thirty-nine thousand, six hundred sixteen".