123723675447 has 4 divisors (see below), whose sum is σ = 164964900600. Its totient is φ = 82482450296.

The previous prime is 123723675433. The next prime is 123723675503. The reversal of 123723675447 is 744576327321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123723675447 - 2⁴ = 123723675431 is a prime.

It is a super-2 number, since 2×123723675447² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123723675447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123723679447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20620612572 + ... + 20620612577.

It is an arithmetic number, because the mean of its divisors is an integer number (41241225150).

Almost surely, 2^123723675447 is an apocalyptic number.

123723675447 is a deficient number, since it is larger than the sum of its proper divisors (41241225153).

123723675447 is an equidigital number, since it uses as much as digits as its factorization.

123723675447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41241225152.

The product of its digits is 5927040, while the sum is 51.

The spelling of 123723675447 in words is "one hundred twenty-three billion, seven hundred twenty-three million, six hundred seventy-five thousand, four hundred forty-seven".