123782479259 has 4 divisors (see below), whose sum is σ = 124137157200. Its totient is φ = 123427801320.

The previous prime is 123782479243. The next prime is 123782479267. The reversal of 123782479259 is 952974287321.

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 123782479259 - 2⁴ = 123782479243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123782479198 and 123782479207.

It is not an unprimeable number, because it can be changed into a prime (123782479279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177338447 + ... + 177339144.

It is an arithmetic number, because the mean of its divisors is an integer number (31034289300).

Almost surely, 2^123782479259 is an apocalyptic number.

123782479259 is a deficient number, since it is larger than the sum of its proper divisors (354677941).

123782479259 is an equidigital number, since it uses as much as digits as its factorization.

123782479259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354677940.

The product of its digits is 15240960, while the sum is 59.

The spelling of 123782479259 in words is "one hundred twenty-three billion, seven hundred eighty-two million, four hundred seventy-nine thousand, two hundred fifty-nine".