123647623670506 has 8 divisors (see below), whose sum is σ = 199738469006244. Its totient is φ = 57068134001760.

The previous prime is 123647623670491. The next prime is 123647623670617. The reversal of 123647623670506 is 605076326746321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 123628625183281 + 18998487225 = 11118841^2 + 137835^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2377838916715 + ... + 2377838916766.

Almost surely, 2^{123647623670506} is an apocalyptic number.

123647623670506 is a deficient number, since it is larger than the sum of its proper divisors (76090845335738).

123647623670506 is a wasteful number, since it uses less digits than its factorization.

123647623670506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4755677833496.

The product of its (nonzero) digits is 45722880, while the sum is 58.

The spelling of 123647623670506 in words is "one hundred twenty-three trillion, six hundred forty-seven billion, six hundred twenty-three million, six hundred seventy thousand, five hundred six".