123915873673 has 2 divisors, whose sum is σ = 123915873674. Its totient is φ = 123915873672.

The previous prime is 123915873659. The next prime is 123915873743. The reversal of 123915873673 is 376378519321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120567283984 + 3348589689 = 347228^2 + 57867^2 .

It is a cyclic number.

It is not a de Polignac number, because 123915873673 - 2²⁵ = 123882319241 is a prime.

It is not a weakly prime, because it can be changed into another prime (123915873623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61957936836 + 61957936837.

It is an arithmetic number, because the mean of its divisors is an integer number (61957936837).

Almost surely, 2^123915873673 is an apocalyptic number.

It is an amenable number.

123915873673 is a deficient number, since it is larger than the sum of its proper divisors (1).

123915873673 is an equidigital number, since it uses as much as digits as its factorization.

123915873673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5715360, while the sum is 55.

The spelling of 123915873673 in words is "one hundred twenty-three billion, nine hundred fifteen million, eight hundred seventy-three thousand, six hundred seventy-three".