123283673865 has 80 divisors (see below), whose sum is σ = 241243016256. Its totient is φ = 59735491200.

The previous prime is 123283673861. The next prime is 123283673867. The reversal of 123283673865 is 568376382321.

It is a happy number.

123283673865 is a `hidden beast` number, since 123 + 2 + 83 + 67 + 386 + 5 = 666.

It is not a de Polignac number, because 123283673865 - 2² = 123283673861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123283673861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7667935 + ... + 7683995.

Almost surely, 2^123283673865 is an apocalyptic number.

123283673865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123283673865 is a deficient number, since it is larger than the sum of its proper divisors (117959342391).

123283673865 is a wasteful number, since it uses less digits than its factorization.

123283673865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17812 (or 17803 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The spelling of 123283673865 in words is "one hundred twenty-three billion, two hundred eighty-three million, six hundred seventy-three thousand, eight hundred sixty-five".